A. | Gonadotropin LH stimulates synthesis and secretion of Androgen |
B. | Gonadotropin releasing hormone from hypothalamus |
C. | Androgen stimulates spermatogenesis |
D. | Gonadotropin FSH helps in the process of spermiogenesis |
E. | Gonadotropins from anterior pituitary gland |
1. | (E), (A), (D), (B), (C) | 2. | (C), (A), (D), (E), (B) |
3. | (B), (E), (A), (C), (D) | 4. | (D), (B), (A), (C), (E) |
Statement I: | The release of sperms into the seminiferous tubules is called spermiation. |
Statement II: | Spermiogenesis is the process of formation of sperms from spermatogonia. |
(a) | It results in the formation of haploid gametes. |
(b) | Differentiation of gamete occurs after the completion of meiosis. |
(c) | Meiosis occurs continuously in a mitotically dividing stem cell population. |
(d) | It is controlled by the Luteinising hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary. |
(e) | It is initiated at puberty. |
1. (b), (c), and (e) only | 2. (c) and (e) only |
3. (b) and (c) only | 4. (b), (d) and (e) only |
Select the correct option of haploid cells from the following groups :
1. | Primary oocyte, Secondary oocyte, Spermatid |
2. | Secondary spermatocyte, First polar body, Ovum |
3. | Spermatogonia, Primary spermatocyte, Spermatid |
4. | Primary spermatocyte, Secondary spermatocyte, Second polar body |
Match the following columns and select the correct option:
Column I | Column II | ||
(a) | Ovary | (i) | Human chorionic gonadotropin |
(b) | Placenta | (ii) | Estrogen & Progesterone |
(c) | Corpus luteum | (iii) | Androgens |
(d) | Leydig cells | (iv) | Progesterone only |
Options: | (a) | (b) | (c) | (d) |
1. | (iv) | (iii) | (ii) | (i) |
2. | (i) | (ii) | (iii) | (iv) |
3. | (i) | (iii) | (ii) | (iv) |
4. | (ii) | (i) | (iv) | (iii) |
1. | Is produced by granulosa cells in the ovary and inhibits the secretion of FSH |
2. | Is produced by granulosa cells in the ovary and inhibits the secretion of LH |
3. | Is produced by nurse cells in the testes and inhibits the secretion of LH |
4. | Inhibits the secretion of LH, FSH and prolactin. |
Which of the following cells during gametogenesis is normally diploid?
1. | spermatogonia, spermatocyte, spermatozoa, spermatid |
2. | Spermatogonia, spermatozoa, spermatocyte, spermatid |
3. | Spermatogonia, spermatocyte, spermatid, spermatozoa |
4. | Spermatid, spermatocyte, spermatogonia, spermatozoa |