In the vertebrates testes, for nourishment during spermiogenesis, the spermatids get attached to
1. | Interstitial cells | 2. | Sperm-mother cells |
3. | Spermatocytes | 4. | Sertoli cells |
The menstrual cycle begins with the casting off of
1. | Placenta |
2. | Blood |
3. | Endometrial lining along with blood vessels |
4. | All the three |
Follicular atresia is
1. | Formation of corpus luteum |
2. | Degeneration of folliciles |
3. | Formation of Graffian follicle |
4. | Increase in number of follicles |
The human fetus develops limbs and digits:
1. After one month of pregnancy
2. By the end of second month of pregnancy
3. During the fifth month of pregnancy
4. By the end of second trimester of pregnancy
Human milk differs from cow's milk in that it contains:
1. | Higher percentage of fat |
2. | Higher percentage of carbohydrate |
3. | Lower percentage of protein |
4. | (2) and (3) |
Graafian follicle of ovary secretes which hormone
1. Cortisone
2. Relaxin
3. Progesterone
4. None of these
In man the vas deferencs emerges from
1. Cauda epididymis
2. Caput epididymis
3. Corpora cavernosa
4. Glomus major
The substrate used for sperm metabolism is produced by the
1. prostate
2. seminal vesicle
3. Cowper's gland
4. testes
Which of the following is characteristic for identifying the structure of the mammalian testis?
1. | Spermatogonia | 2. | Spermatocytes |
3. | Cells of Sertoli | 4. | Spermatids |
In the male human being, sperms contain autosomes and
1. Only one Y-chromosome
2. Only one X-chromosome
3. Both X and Y-chromosome
4. Either X or Y-chromosome