{"id":12875,"date":"2025-09-24T08:14:41","date_gmt":"2025-09-24T07:14:41","guid":{"rendered":"https:\/\/mcqsadda.com\/?p=12875"},"modified":"2026-01-13T06:26:51","modified_gmt":"2026-01-13T06:26:51","slug":"human-diseases-top-100-mcqs-with-answer-and-explanation","status":"publish","type":"post","link":"https:\/\/mcqsadda.com\/index.php\/2025\/09\/24\/human-diseases-top-100-mcqs-with-answer-and-explanation\/","title":{"rendered":"Human Diseases Top 100 MCQs With Answer and Explanation"},"content":{"rendered":"\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">1. The causative organism of tuberculosis (TB) is ___________.<br><\/mark><\/strong>A) Salmonella typhi<br>B) Mycobacterium tuberculosis<br>C) Vibrio cholerae<br>D) Clostridium tetani<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  TB is a bacterial infection mainly affecting lungs, caused by M. tuberculosis.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">2. The BCG vaccine is used against<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Typhoid<br>B) Tuberculosis<br>C) Cholera<br>D) Diphtheria<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  BCG (Bacille Calmette\u2013Gu\u00e9rin) vaccine provides protection against TB. \n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">3. The causative organism of typhoid fever is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Vibrio cholerae<br>B) Mycobacterium tuberculosis<br>C) Salmonella typhi<br>D) Yersinia pestis<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Typhoid spreads through contaminated food and water.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">4. The Widal test is used for diagnosis of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Tuberculosis<br>B) Typhoid<br>C) Malaria<br>D) Cholera<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Widal test detects antibodies against Salmonella typhi.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">5. Cholera is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Vibrio cholerae<br>B) Salmonella<br>C) Streptococcus<br>D) Plasmodium<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Cholera is a waterborne bacterial infection causing severe diarrhea.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">6. The causative organism of plague is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Bacillus anthracis<br>B) Yersinia pestis<br>C) Clostridium botulinum<br>D) Treponema pallidum<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Plague (black death) spreads through rat fleas.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">7. The causative agent of diphtheria is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Clostridium tetani<br>B) Corynebacterium diphtheriae<br>C) Bacillus anthracis<br>D) Treponema pallidum<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Diphtheria causes throat infection and breathing difficulties.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">8. Which bacterial disease is transmitted by rats and fleas?<br><\/mark><\/strong>A) Plague<br>B) Cholera<br>C) Typhoid<br>D) Diphtheria<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Plague spreads through flea bites of infected rats.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">9. The causative organism of tetanus is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Clostridium tetani<br>B) Bacillus anthracis<br>C) Yersinia pestis<br>D) Streptococcus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Tetanus bacteria enter through wounds and produce a toxin affecting nerves.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">10. Lockjaw is a symptom of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Typhoid<br>B) Tetanus<br>C) Cholera<br>D) Anthrax<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>   Tetanus toxin causes muscle stiffness and lockjaw.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">11. Anthrax is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Clostridium botulinum<br>B) Bacillus anthracis<br>C) Vibrio cholerae<br>D) Salmonella<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Anthrax affects skin, lungs, and intestines; used as bioweapon.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">12. The vaccine DPT provides immunity against<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Diphtheria, Pertussis, Tetanus<br>B) Dengue, Polio, Typhoid<br>C) Dysentery, Pneumonia, Tuberculosis<br>D) Diphtheria, Polio, Tetanus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  DPT is a triple vaccine for bacterial diseases.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">13. Leprosy is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Clostridium tetani<br>B) Mycobacterium leprae<br>C) Treponema pallidum<br>D) Streptococcus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Leprosy (Hansen\u2019s disease) is a chronic bacterial infection affecting skin and nerves.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">14. Pneumonia can be caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Streptococcus pneumoniae<br>B) Haemophilus influenzae<br>C) Both a and b<br>D) None<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Pneumonia may be caused by Streptococcus pneumoniae or Haemophilus influenzae.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">15. Syphilis is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Neisseria gonorrhoeae<br>B) Treponema pallidum<br>C) Chlamydia trachomatis<br>D) Mycobacterium<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Syphilis is a sexually transmitted bacterial infection.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">16. Gonorrhea is caused by <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Treponema pallidum<br>B) Chlamydia<br>C) Neisseria gonorrhoeae<br>D) Mycobacterium<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Gonorrhea is an STD caused by N. gonorrhoeae.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">17. Which bacterial disease spreads mainly through contaminated milk?<br><\/mark><\/strong>A) Cholera<br>B) Tuberculosis (bovine type)<br>C) Typhoid<br>D) Tetanus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Mycobacterium bovis can spread through unpasteurized milk.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">18. Who discovered the bacterium Mycobacterium tuberculosis?<br><\/mark><\/strong>A) Louis Pasteur<br>B) Robert Koch<br>C) Alexander Fleming<br>D) Edward Jenner<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Robert Koch discovered M. tuberculosis in 1882.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">19. Who discovered penicillin, the first antibiotic?<br><\/mark><\/strong>A) Robert Koch<br>B) Alexander Fleming<br>C) Louis Pasteur<br>D) Edward Jenner<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  In 1928, Fleming discovered penicillin from Penicillium notatum.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">20. Lockjaw is caused due to a toxin affecting<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Respiratory system<br>B) Nervous system<br>C) Digestive system<br>D) Circulatory system<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Tetanus toxin affects nerves \u2192 muscle spasms.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">21. A spore-forming bacterium that causes food poisoning is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Clostridium botulinum<br>B) E. coli<br>C) Vibrio cholerae<br>D) Streptococcus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Botulism results from ingestion of toxin produced in canned food.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">22. Typhoid fever is commonly spread through<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Air<br>B) Contaminated food and water<br>C) Mosquito bites<br>D) Animal bites<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Typhoid spreads via feco-oral route.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>23. The \u201cBlack Death\u201d in medieval Europe was due to<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/strong><\/mark>A) Cholera<br>B) Tuberculosis<br>C) Plague<br>D) Leprosy<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Bubonic plague killed millions in Europe in 14th century.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">24. Which bacterial disease spreads through wounds?<br><\/mark><\/strong>A) Tetanus<br>B) Tuberculosis<br>C) Cholera<br>D) Typhoid<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Tetanus spores enter body via wounds and cuts.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">25. Who is known as the \u201cFather of Germ Theory\u201d?<br><\/mark><\/strong>A) Robert Koch<br>B) Louis Pasteur<br>C) Joseph Lister<br>D) Edward Jenner<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Pasteur proposed that microorganisms cause diseases.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">26. The causative organism of AIDS is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Hepatitis virus<br>B) HIV (Human Immunodeficiency Virus)<br>C) Influenza virus<br>D) Rabies virus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  HIV attacks helper T-cells, weakening immunity and causing AIDS.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">27. Which cells are destroyed by HIV?<br><\/mark><\/strong>A) Red blood cells<br>B) Helper T lymphocytes (CD4 cells)<br>C) Platelets<br>D) B lymphocytes<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  HIV targets CD4+ T-cells, reducing immune defense.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">28. Which test is commonly used for detection of HIV infection?<br><\/mark><\/strong>A) ELISA<br>B) Widal<br>C) Mantoux<br>D) Vidal<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  ELISA test detects antibodies against HIV.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">29. Polio is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) HIV<br>B) Polio virus<br>C) Adenovirus<br>D) Influenza virus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Polio is caused by poliovirus (Picornavirus family).\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">30. Polio affects primarily<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Heart<br>B) Brain<br>C) Nervous system<br>D) Lungs<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Polio virus infects motor neurons, causing paralysis.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">31. Which vaccine is used for polio prevention?<br><\/mark><\/strong>A) BCG<br>B) OPV (Oral Polio Vaccine)<br>C) DPT<br>D) MMR<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  OPV (Sabin vaccine) gives immunity against polio.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">32. Rabies is transmitted by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Mosquito bites<br>B) Infected dog\/animal bites<br>C) Contaminated food<br>D) Air<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Rabies virus spreads via bite of infected animals.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">33. The causative agent of rabies is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Paramyxovirus<br>B) Rhabdovirus<br>C) Retrovirus<br>D) Flavivirus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>   Rabies is caused by rabies virus (Rhabdoviridae family).\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">34. The vaccine for rabies was developed by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Robert Koch<br>B) Louis Pasteur<br>C) Edward Jenner<br>D) Alexander Fleming<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Pasteur developed the first rabies vaccine in 1885.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">35. Hepatitis affects mainly<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Heart<br>B) Lungs<br>C) Liver<br>D) Kidneys<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Hepatitis = inflammation of the liver caused by Hepatitis viruses (A\u2013E).\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">36. Which hepatitis virus is transmitted through contaminated food and water?<br><\/mark><\/strong>A) Hepatitis A &amp; E<br>B) Hepatitis B &amp; C<br>C) Hepatitis D<br>D) All types<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Hepatitis A\/E spread feco-orally, while B\/C spread via blood\/sexual contact.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">37. Which hepatitis virus can cause chronic infection and liver cancer?<br><\/mark><\/strong>A) Hepatitis A<br>B) Hepatitis B &amp; C<br>C) Hepatitis E<br>D) Hepatitis D only<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Hepatitis B and C can cause chronic liver disease and cancer.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">38. Which vaccine is available against hepatitis?<br><\/mark><\/strong>A) Only Hepatitis A<br>B) Hepatitis A and B<br>C) Hepatitis C<br>D) None<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Effective vaccines exist for Hepatitis A and B.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">39. Smallpox is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Variola virus<br>B) Varicella virus<br>C) Adenovirus<br>D) Measles virus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Smallpox, eradicated in 1980, was caused by variola virus.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">40. The first disease eradicated by vaccination was<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Polio<br>B) Smallpox<br>C) Measles<br>D) Plague<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  WHO declared smallpox eradicated in 1980.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">41. The first vaccine developed by Edward Jenner was against<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Measles<br>B) Rabies<br>C) Smallpox<br>D) Polio<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Jenner developed smallpox vaccine in 1796 using cowpox virus.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>42. Measles is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><\/strong><br><\/mark>A) Variola virus<br>B) Paramyxovirus (Morbillivirus)<br>C) Adenovirus<br>D) Retrovirus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Measles causes fever, rash, and can lead to pneumonia.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">43. Chickenpox is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Variola virus<br>B) Varicella-zoster virus<br>C) Pox virus<br>D) Adenovirus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Chickenpox is caused by Varicella-zoster, a herpesvirus.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">44. Which viral disease is also known as \u201cGerman measles\u201d?<br><\/mark><\/strong>A) Rubeola<br>B) Rubella<br>C) Chickenpox<br>D) Smallpox<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Rubella (German measles) is caused by Rubella virus.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">45. Influenza (flu) is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Orthomyxovirus<br>B) Adenovirus<br>C) Paramyxovirus<br>D) Retrovirus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Influenza virus (Orthomyxoviridae) causes seasonal flu.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">46. The causative agent of COVID-19 is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) SARS-CoV<br>B) SARS-CoV-2<br>C) MERS-CoV<br>D) H1N1 virus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  COVID-19 is caused by the novel coronavirus SARS-CoV-2.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">47. Athlete\u2019s foot is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Virus<br>B) Fungus<br>C) Bacterium<br>D) Protozoan<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Athlete\u2019s foot (Tinea pedis) is a fungal infection.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">48. Ringworm is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Roundworms<br>B) Fungus (Dermatophytes)<br>C) Virus<br>D) Bacteria<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Ringworm is caused by fungi like Trichophyton, Microsporum.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">49. Candidiasis (thrush) is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Aspergillus<br>B) Candida albicans<br>C) Penicillium<br>D) Rhizopus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Candida is a yeast causing oral and genital thrush.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">50. Aspergillosis is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Candida<br>B) Trichophyton<br>C) Aspergillus<br>D) Microsporum<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Aspergillus fungus infects lungs and sinuses, especially in immunocompromised persons.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">51. Malaria is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Virus<br>B) Bacterium<br>C) Protozoan (Plasmodium)<br>D) Fungus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Malaria is caused by Plasmodium species transmitted by female Anopheles mosquito.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">52. Which species causes malignant (severe) malaria?<br><\/mark><\/strong>A) Plasmodium vivax<br>B) Plasmodium malariae<br>C) Plasmodium falciparum<br>D) Plasmodium ovale<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  P. falciparum causes cerebral malaria, most fatal type.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">53. The infective stage of malaria parasite for humans is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Gametocyte<br>B) Sporozoite<br>C) Merozoite<br>D) Trophozoite<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Sporozoites from mosquito saliva infect humans.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">54. The organ first affected in malaria is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Brain<br>B) Liver<br>C) Heart<br>D) Kidney<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Sporozoites first multiply in liver before entering red blood cells.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">55. The vector of malaria is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Culex mosquito<br>B) Female Anopheles mosquito<br>C) Aedes mosquito<br>D) Sandfly<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Female Anopheles transmits malaria.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">56. Kala-azar (black fever) is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Plasmodium<br>B) Leishmania donovani<br>C) Entamoeba histolytica<br>D) Giardia<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Kala-azar is transmitted by sandfly.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">57. The vector of kala-azar is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Mosquito<br>B) Sandfly (Phlebotomus)<br>C) Housefly<br>D) Tsetse fly<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Sandfly transmits Leishmania.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>58. Sleeping sickness is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/strong><\/mark>A) Entamoeba<br>B) Trypanosoma gambiense<br>C) Leishmania<br>D) Giardia<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Sleeping sickness is transmitted by tsetse fly.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">59. The vector of sleeping sickness is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Housefly<br>B) Tsetse fly<br>C) Sandfly<br>D) Aedes mosquito<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Tsetse fly transmits Trypanosoma.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">60. Amoebic dysentery is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Giardia lamblia<br>B) Entamoeba histolytica<br>C) Trichomonas vaginalis<br>D) Ascaris lumbricoides<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Amoebiasis spreads through contaminated food and water.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">61. Giardiasis is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Giardia lamblia<br>B) Entamoeba<br>C) Trypanosoma<br>D) Leishmania<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Giardia causes diarrhea and malabsorption.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">62. Trichomoniasis is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Trichomonas vaginalis<br>B) Entamoeba<br>C) Plasmodium<br>D) Giardia<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  It is a sexually transmitted protozoan infection.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">63. Filariasis (elephantiasis) is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Wuchereria bancrofti<br>B) Ascaris lumbricoides<br>C) Taenia solium<br>D) Plasmodium<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Transmitted by Culex mosquito, causes swelling of legs\/genitals.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">64. The vector of filariasis is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Anopheles mosquito<br>B) Aedes mosquito<br>C) Culex mosquito<br>D) Sandfly<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Culex mosquito spreads filarial worm.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">65. Ascariasis is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Taenia<br>B) Ascaris lumbricoides<br>C) Trichinella<br>D) Ancylostoma<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Roundworm infection spreads via contaminated vegetables\/water.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">66. Hookworm disease is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Ancylostoma duodenale<br>B) Ascaris lumbricoides<br>C) Wuchereria<br>D) Taenia<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Hookworm enters through skin, causes anemia.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">67. The infective stage of hookworm is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Egg<br>B) Larva<br>C) Adult worm<br>D) Cyst<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Filariform larvae penetrate skin, enter bloodstream.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">68. Taeniasis is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Ascaris<br>B) Wuchereria<br>C) Taenia solium \/ Taenia saginata<br>D) Ancylostoma<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Pork tapeworm (T. solium) and beef tapeworm (T. saginata) cause taeniasis.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">69. Hydatid disease is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Echinococcus granulosus<br>B) Ascaris<br>C) Wuchereria<br>D) Trichinella<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Dog tapeworm forms hydatid cysts in liver\/lungs.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">70. Trichinosis is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Trichinella spiralis<br>B) Ascaris<br>C) Taenia<br>D) Hookworm<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Nematode infection acquired from undercooked pork.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">71. Guinea worm disease is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Dracunculus medinensis<br>B) Taenia<br>C) Ascaris<br>D) Hookworm<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Transmitted by drinking water containing infected Cyclops.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">72. Which is the intermediate host of Guinea worm?<br><\/mark><\/strong>A) Mosquito<br>B) Cyclops (water flea)<br>C) Housefly<br>D) Sandfly<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Cyclops acts as vector\/intermediate host of Dracunculus.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">73. Schistosomiasis (bilharzia) is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Roundworm<br>B) Flatworm (Schistosoma)<br>C) Hookworm<br>D) Filarial worm<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Blood fluke causes schistosomiasis, common in Africa.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">74. The vector of Japanese encephalitis is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Sandfly<br>B) Culex mosquito<br>C) Anopheles mosquito<br>D) Housefly<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Culex mosquitoes transmit Japanese encephalitis virus.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">75. The housefly transmits diseases like<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cholera, Typhoid, Dysentery<br>B) Malaria<br>C) Filariasis<br>D) Sleeping sickness<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Housefly spreads pathogens mechanically by contaminating food.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">76. Deficiency of Vitamin A causes<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Rickets<br>B) Scurvy<br>C) Night blindness<br>D) Pellagra<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C <\/b><BR>\n<b>Explanation:<\/b>   Vitamin A is essential for rhodopsin in eyes; deficiency impairs vision in dim light.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">77. Deficiency of Vitamin D causes<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Beriberi<br>B) Pellagra<br>C) Rickets<br>D) Night blindness<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C <\/b><BR>\n<b>Explanation:<\/b>  Vitamin D deficiency causes soft, weak bones in children (rickets).\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">78. Deficiency of Vitamin C causes<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Pellagra<br>B) Scurvy<br>C) Beriberi<br>D) Rickets<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Vitamin C deficiency \u2192 bleeding gums, loose teeth, poor wound healing.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">79. Deficiency of Vitamin K causes<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Bone deformity<br>B) Night blindness<br>C) Excessive bleeding<br>D) Pellagra<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Vitamin K is needed for clotting factors; deficiency delays blood clotting.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">80. Deficiency of Vitamin B1 (Thiamine) causes <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Pellagra<br>B) Beriberi<br>C) Scurvy<br>D) Night blindness<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Beriberi affects nervous system and heart due to lack of thiamine.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">81. Deficiency of Vitamin B3 (Niacin) causes<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Pellagra<br>B) Beriberi<br>C) Rickets<br>D) Scurvy<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Pellagra shows 3 Ds: diarrhea, dermatitis, dementia.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">82. Deficiency of Vitamin B12 causes <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Pernicious anemia<br>B) Rickets<br>C) Scurvy<br>D) Pellagra<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Lack of B12 prevents normal RBC formation.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">83. Deficiency of iron causes<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Goiter<br>B) Anemia<br>C) Rickets<br>D) Scurvy<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Iron is essential for hemoglobin; deficiency causes anemia.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">84. Deficiency of iodine causes<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Anemia<br>B) Goiter<br>C) Rickets<br>D) Scurvy<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Iodine deficiency enlarges thyroid gland \u2192 goiter.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">85. Kwashiorkor is caused by deficiency of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Vitamins<br>B) Proteins<br>C) Fats<br>D) Carbohydrates<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Protein deficiency \u2192 swollen belly, edema in children.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">86. Marasmus is caused by deficiency of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Only proteins<br>B) Energy (proteins + calories)<br>C) Only vitamins<br>D) Only minerals<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Severe calorie + protein deficiency \u2192 muscle wasting, weakness.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">87. Diabetes mellitus is due to deficiency of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Insulin<br>B) Glucagon<br>C) Thyroxine<br>D) Cortisol<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Lack of insulin from pancreas \u2192 high blood sugar.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">88. Which organ is affected in diabetes mellitus?<br><\/mark><\/strong>A) Liver<br>B) Pancreas<br>C) Kidney<br>D) Heart<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Beta cells of pancreas fail to produce enough insulin.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">89. Hypertension is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Low blood sugar<br>B) High blood pressure<br>C) High cholesterol<br>D) Weak bones<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Hypertension is persistent BP above 140\/90 mmHg.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">90. Arteriosclerosis is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Hardening of arteries due to fat deposition<br>B) Weak bones<br>C) Vitamin deficiency<br>D) Low BP<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Cholesterol builds up in arteries \u2192 reduced elasticity.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">91. Cancer is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Bacteria<br>B) Uncontrolled cell division<br>C) Virus only<br>D) Fungi<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Cancer results from abnormal cell growth forming tumors.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">92. Which cancer affects white blood cells?<br><\/mark><\/strong>A) Carcinoma<br>B) Leukemia<br>C) Sarcoma<br>D) Melanoma<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Leukemia is blood cancer involving WBCs.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">93. Which cancer affects skin pigment cells?<br><\/mark><\/strong>A) Carcinoma<br>B) Melanoma<br>C) Sarcoma<br>D) Leukemia<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Melanoma arises from pigment-producing cells of skin.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">94. Sickle cell anemia is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Vitamin deficiency<br>B) Mutation in hemoglobin gene<br>C) Lack of iron<br>D) Lack of vitamin B12<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Genetic disorder producing abnormal sickle-shaped RBCs.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">95. Hemophilia is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Excessive RBC production<br>B) Inability of blood to clot<br>C) Weak bones<br>D) Vitamin deficiency<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Hemophilia is a hereditary X-linked disorder where blood fails to clot.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">96. Down syndrome is caused by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Lack of vitamins<br>B) Trisomy of chromosome 21<br>C) Deficiency of hormones<br>D) Viral infection<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Extra chromosome 21 causes Down syndrome (genetic disorder).\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">97. Thalassemia is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Vitamin deficiency<br>B) Genetic disorder affecting hemoglobin synthesis<br>C) Iron overload disease<br>D) Viral infection<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Thalassemia reduces hemoglobin production, causing anemia.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">98. Alzheimer\u2019s disease affects<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Heart<br>B) Lungs<br>C) Brain<br>D) Kidneys<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>   Alzheimer\u2019s is a neurodegenerative disease causing memory loss.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">99. Osteoporosis is caused by deficiency of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Calcium &amp; Vitamin D<br>B) Iron<br>C) Iodine<br>D) Vitamin C<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Osteoporosis = weak bones due to lack of calcium and vitamin D.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">100. The first antibiotic discovered for bacterial diseases was<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Streptomycin<br>B) Penicillin<br>C) Tetracycline<br>D) Chloramphenicol<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Penicillin, discovered by Alexander Fleming in 1928, was the first antibiotic.\n <\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>1. The causative organism of tuberculosis (TB) is ___________.A) Salmonella typhiB) Mycobacterium tuberculosisC) Vibrio choleraeD) Clostridium tetani Show Answer Answer: B Explanation: TB is a bacterial infection mainly affecting lungs, caused by M. tuberculosis. 2. The BCG vaccine is used against___________.A) TyphoidB) TuberculosisC) CholeraD) Diphtheria Show Answer Answer: B Explanation: BCG (Bacille Calmette\u2013Gu\u00e9rin) vaccine provides<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19],"tags":[16283,16151,16133,16155,16154,16147,16158,16139,16290,16291,16135,16288,16281,16284,16276,10989,16292,16287,16289,16279,4029,16156,5649,5623,16285,16278,16134,8780,16132,16286,16277,16140,16282,16280],"class_list":{"0":"post-12875","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-biology","7":"category-science","8":"tag-bacterial-diseases","9":"tag-biology-learning","10":"tag-biology-mcqs","11":"tag-biology-preparation-material","12":"tag-biology-questions-and-answers","13":"tag-biology-quiz","14":"tag-biology-revision","15":"tag-biology-study-material","16":"tag-chronic-diseases","17":"tag-common-diseases","18":"tag-competitive-exam-biology","19":"tag-disease-transmission","20":"tag-fungal-diseases","21":"tag-genetic-disorders","22":"tag-human-diseases","23":"tag-human-diseases-top-100-mcqs-with-answer-and-explanation","24":"tag-human-health","25":"tag-hygiene-and-sanitation","26":"tag-immunity","27":"tag-infectious-diseases","28":"tag-mcqs-adda","29":"tag-mcqs-for-biology-exam","30":"tag-mcqs-for-pc-psi-sda-fda-pdo-vao-banking-kas-ias-ssc-gd-ssc-chsl-ssc-cgl-for-all-compitative-exams","31":"tag-mcqs-for-sda-fda-pdo-vao-banking-kas-ias-ssc-gd-ssc-chsl-ssc-cgl-for-all-compitative-exams","32":"tag-non-infectious-diseases","33":"tag-parasitic-diseases","34":"tag-psc-biology-mcqs","35":"tag-public-health","36":"tag-ssc-biology-mcqs","37":"tag-symptoms-and-causes","38":"tag-treatment-and-prevention","39":"tag-upsc-biology-mcqs","40":"tag-vaccines","41":"tag-viral-diseases"},"_links":{"self":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/12875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/comments?post=12875"}],"version-history":[{"count":104,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/12875\/revisions"}],"predecessor-version":[{"id":36189,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/12875\/revisions\/36189"}],"wp:attachment":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/media?parent=12875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/categories?post=12875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/tags?post=12875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}