What maintains the functions of male sex accessory ducts and glands in humans?
1. Releasing hormones from the hypothalamus.
2. Pituitary gonadotropins.
3. Steroids from adrenal cortex.
4. Testicular androgens.
| 1. | The division of spermatogonia to produce spermatocytes. |
| 2. | The transformation of spermatids into spermatozoa. |
| 3. | The production of testosterone by Leydig cells. |
| 4. | The process by which primary spermatocytes divide meiotically to form secondary spermatocytes. |
| Column I | Column II | ||
| 1 | Seminiferous tubules | A | Site where sperm is stored and matured |
| 2 | Epididymis | B | Produces a fluid that is part of the semen |
| 3 | Prostate gland | C | Site of development of the fetus |
| 4 | Uterus | D | Site of sperm production |
| 1. | Seminiferous tubules | 2. | Vas deferens |
| 3. | Epididymis | 4. | Prostate gland |
| 1. | It is expelled into the pelvic cavity. |
| 2. | It increases the secretion of FSH. |
| 3. | It degenerates into the corpus albicans. |
| 4. | It maintains endometrium until the next ovulation. |
| I: | in males is due to secretion of GnRH by the hypothalamus. |
| II: | in females is due to secretion of GnIH by the hypothalamus. |
| Assertion (A): | The secondary oocyte retains bulk of the nutrient rich cytoplasm of the primary oocyte. |
| Reason (R): | The division of primary oocyte is an unequal division resulting in the formation of a large haploid secondary oocyte and a tiny first polar body. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |