No new follicles develop in the luteal phase of the menstrual cycle because
Answer: (D) Both FSH and LH levels are low in the luteal phase. Answer: (D) Both FSH and LH levels are low in the luteal phase Solution: Gonadotropins LH and FSH peak in mid-cycle to drive ovulation; thereafter, in the luteal phase, the corpus luteum secretes large amounts of progesterone which suppresses gonadotropin release, keeping both FSH and LH levels low.
- A.Follicles do not remain in the ovary after ovulation
- B.FSH levels are high in the luteal phase
- C.LH levels are high in the luteal phase
- D.Both FSH and LH levels are low in the luteal phase✓
Correct Answer
(D) Both FSH and LH levels are low in the luteal phase
Solution & Explanation
Answer: (D) Both FSH and LH levels are low in the luteal phase Solution: Gonadotropins LH and FSH peak in mid-cycle to drive ovulation; thereafter, in the luteal phase, the corpus luteum secretes large amounts of progesterone which suppresses gonadotropin release, keeping both FSH and LH levels low. Since FSH (which drives follicular development) is low, no new follicles can develop during the luteal phase. NCERT Reference: Ch 2, p.35, line 3 — "gonadotropins (LH and FSH) increases gradually during the follicular"