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1. Numerical Taxonomy is based on ________
A. Chemical constituents
B. Observable characteristics
C. Cytological information
D. Evolutionary relationships
ANSWER: B.Observable characteristics
SOLUTION :It is based on all observable characteristics. In numerical taxonomy, numbers and codes are assigned to all the characters and every character is given equal importance.
2. Fusion of two gametes dissimilar in size, as in species of Eudorina is termed as ______
A. Isogamous
B. Oogamous
C. Anisogamous
D. None of the above
ANSWER: C.Anisogamous
SOLUTION:Anisogamous is a condition in which fusion of two gametes takes place which is dissimilar in size.
3. Agar is is obtained from___________.
A. Gelidium
B. Laminaria
C. Porphyra
D. Sargassum
ANSWER : A.Gelidium
SOLUTION:Agar agar is a product obtained from numerous algae, mainly of the genus Gracilaria, Gelidium and Eucheuma. All of these algae are characterized by belonging to the group of red algae. These algae are small, have a reddish stem and are rich in mucilage, a type of fiber.
4. Chlorophyll a and b are found in __________.
A. Rhodophyceae
B. Phaeophyceae
C. Chlorophyceae
D. All of them
ANSWER: C.Chlorophyceae
SOLUTION:Chlorophyll A and B are two types of chlorophyll found in chloroplasts in plants and green algae. They are associated with integral membrane proteins in the thylakoid membrane.
5. Antheridium is the _____ and archegonium is the _______
A. Female sex organ, male sex organ
B. Both are male sex organs
C. Both are female sex organs
D. Male sex organ and female sex organ
ANSWER: D.Male sex organ and femael sex organ
SOLUTION:The male and female organs in Moss plants are called Antheridium and Archegonium. In bryophytes, the antheridium is the male sex organ, which produces sperm. The archegonium is the female reproductive organ, which produces eggs.
6. Asexual reproduction in liverworts takes place by _____
A. Formation of asexual gametes
B. Fregmentation
C. Fusion
D. None of the above
ANSWER: B.Fregmentation
SOLUTION: Asexual reproduction in liverworts occurs via the fragmentation process of thalli. Fragmentation involves the process of growth of a new organism from a fragment of the parent body. Liverworts also reproduce via gemmae.
7. The first stage in the development of mosses is ______.
A. Protonema
B. Slender axes
C. Gametophyte
D. None of the above
ANSWER: A.Protonema
SOLUTION: The first stage is the protonema stage, which develops directly from a spore. It is a creeping, green, branched and frequently filamentous stage. The second stage is the leafy stage, which develops from the secondary protonema as a lateral bud.
8. Which of the following is a pteridophyte ?
A. Funaria
B. Selaginella
C. Equisetum
D. Both b and c are correct
ANSWER: D.Both b and c are correct
SOLUTION: Plant under this subgroup is Seedless Vascular Plants that are Reproduced by means of spores. The term Pteridophyta was Coined by Haeckel. Examples- selaginella,Salvinia,Marsilea etc.
9. Which out of these is not a class of pteridophytes ?
A. Psilopsida
B. Lycopsida
C. Sphenopsida
D. Selaginella
ANSWER: D.Selaginella
SOLUTION: Selaginella is a class of pteridophytes. Pteridophytes are vascular plants that reproduce by spores and are sometimes called “cryptogams” because they don’t produce flowers or seeds. The four classes of pteridophytes are Psilopsida, Lycopsida, Sphenopsida, and Pteropsida.
10. In which division of plant kingdom the female gametophytes do not have an independent free-living existence.
A. Bryophytes
B. Pteridophytes
C. Gymnosperms
D. All of the following
ANSWER: C.Gymnosperms
SOLUTION:In gymnosperms and angiosperms, the gametophyte is dependent upon the sporophyte. The male and female gametophytes do not have an independent free-living existence in gymnosperms and angiosperms.