| 1 |
Movement of rearrangement of the cells in the embryo is called. |
- A. Cleavage
- B. Gastrulation
- C. Fertilization
- D. Organogenesis
|
| 2 |
in plants regeneration is the basis of plant |
- A. Fishes
- B. Amphibian
- C. Reptiles
- D. Birds
|
| 3 |
Oxytocin is secreted by the endocrine gland named: |
- A. Pituitary gland
- B. Thyroid gland
- C. Parathyroid gland
- D. Adrenal gland
|
| 4 |
The Syndrome which is an example of trisomy of the sex chromosome is |
- A. Turner's syndrome
- B. Down's syndrome
- C. Klinefelter's syndrome
- D. Tay-Sach's syndrome
|
| 5 |
In humans ,MSH(melanocyte-stimulating hormone) ___________ |
- A. Regulates primary skin color
- B. Causes the thyroid to produce thyroxin
- C. Governs the rate of tarming
- D. Concentration is very low.
|
| 6 |
Secondary growth leads to an increase in the diameter if the. |
- A. Leaf
- B. Root
- C. Stem
- D. Stem and root
|
| 7 |
Which of the following hormones is not released by the anterior pituitary? |
- A. Melanocyte - releasing hormone
- B. Gonadotropin-releasing harmone
- C. Thyroid- stimulating hormone
- D. Growth hormone
|
| 8 |
If lobster loses its pincer claw a new claw |
- A. Regenerates
- B. Never develops
- C. IS ready
- D. None of these
|
| 9 |
The addrenaline cortex produces ______________ |
- A. Adrenaline
- B. Calcitonin
- C. Epinephrine
- D. Aldosterone
|
| 10 |
Hypoblast is mainly presumptive |
- A. Endoderm
- B. Mesoderm
- C. Ectoderm
- D. Blastoderm
|