| 1 |
Germination of some seeds e.g. some lettuce varieties, is promoted by. |
- A. Green light
- B. Blue light
- C. Red light
- D. Violet light
|
| 2 |
P660 is quiescent from, is converted to active p 730 by the absorption of. |
- A. Blue light
- B. Red light
- C. Orange light
- D. Yellow light
|
| 3 |
The condition in which biennial and perennial plants are stimulated to flower by exopod to low temperature is called. |
- A. Photoperioclism
- B. Vernalization
- C. Apomixis
- D. Partheiogenesis
|
| 4 |
Menstruation usually lasts for |
- A. 3 - 7 days
- B. 2 - 5 days
- C. 1 - 3 days
- D. 5 - 7 days
|
| 5 |
Fruit ripening is often accompanied by burst of respiratory activity called. |
- A. Apomixes
- B. Climacteric
- C. Endosperm
- D. Photoperiodism
|
| 6 |
An example of long day plant is |
- A. Tomato
- B. Cabbage
- C. Corn
- D. Soyabean
|
| 7 |
In seminiferous tubules repeated division of the germinal epithelium produce |
- A. Oogonia
- B. Zoogonia
- C. Ovogonia
- D. Spermatogonia
|
| 8 |
The hormones which promote boating of some roseate plants is known |
- A. Auxins
- B. Gibberellins
- C. Ethene
- D. Cytokinin
|
| 9 |
The hormones which controls the development of male secondary sexual characteristics during puberty is. |
- A. Progesterone
- B. Testosterone
- C. Estrogen
- D. Thyroxin
|
| 10 |
Haploid males produce sperms by mitosis. |
- A. Hydra
- B. Man
- C. Earth worm
- D. Honey bee
|