Arrange the sequence of different hormones for their role during gametogenesis. (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 Choose the correct answer from the options given below:
Answer: (A) (B),(E),(A),(C),(D). Answer: (a) (B),(E),(A),(C),(D) Solution: The hormonal sequence follows the hypothalamo-hypophysial-gonadal axis: (B) GnRH from hypothalamus stimulates (E) gonadotropins from the anterior pituitary; then (A) LH stimulates synthesis/secretion of androgen, (C) androgen stimulates spermatogenesis, and (D) FSH aids spermiogenesis.
- A.(B),(E),(A),(C),(D)✓
- B.(D),(B),(A),(C),(E)
- C.(E),(A),(D),(B),(C)
- D.(C),(A),(D),(E),(B)
Correct Answer
(A) (B),(E),(A),(C),(D)
Solution & Explanation
Answer: (a) (B),(E),(A),(C),(D) Solution: The hormonal sequence follows the hypothalamo-hypophysial-gonadal axis: (B) GnRH from hypothalamus stimulates (E) gonadotropins from the anterior pituitary; then (A) LH stimulates synthesis/secretion of androgen, (C) androgen stimulates spermatogenesis, and (D) FSH aids spermiogenesis. NCERT states GnRH triggers gonadotrophins, LH stimulates androgen secretion, and FSH with androgens regulate spermatogenesis, fixing the order B-E-A-C-D. NCERT Reference: Chapter 19, Page 241, Line(s) 41-43 — "In males, LH stimulates the synthesis and secretion of hormones called androgens from testis. In males, FSH and androgens regulate spermatogenesis."