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. |