| 1 |
Intercalary meristems are situated at. |
- A. Root apex
- B. Shoot apex
- C. Base of internode
- D. Top of internode
|
| 2 |
Which prosess is characterized by movement and rearrangement of cells in the embryo |
- A. Blastulation
- B. None of these
- C. Neurulation
- D. Gastrulation
|
| 3 |
Unspecialized cells, neoblast are always present in body of. |
- A. Salamander
- B. Planaria
- C. Lizard
- D. Newt
|
| 4 |
Secondary growth leads to an increase in the diameter if the. |
- A. Leaf
- B. Root
- C. Stem
- D. Stem and root
|
| 5 |
Parathyroid hormone acts to ensure that |
- A. Calcium levels in the blood never drop too low
- B. Sodium levels in urine are constant
- C. Potassium levels in the blood do not escalate
- D. The concentration of water in the blood is sufficient
|
| 6 |
In addition to auxin which hormone also play important role in apical domince |
- A. Abcesic acid
- B. Gibberellins
- C. 2,4-D
- D. Cytokinins
|
| 7 |
Clear cytoplasm produces. |
- A. Muscle cells
- B. Gut
- C. Larval epidermis
- D. Notochord
|
| 8 |
In incubating eggs artificially the incubators are usually regulated at temperature between |
- A. 20 - 22<sup>o</sup>C
- B. 27 - 29<sup>o</sup>C
- C. 30 - 32<sup>o</sup>C
- D. 36 - 38<sup>o</sup>C
|
| 9 |
The mesodermal cells do not invaginate but migrate medially and caudally from both sides and create a midline thickening called. |
- A. Hensen's node
- B. Primitive streak
- C. Hypoblast
- D. epiblast
|
| 10 |
In the zone of elongation, the volume of the cells increase upto. |
- A. 100 times
- B. 150 times
- C. 200 times
- D. 250 times
|