Human Reproduction Question 30
30. Which of the following hormone levels will cause release of ovum (ovulation) from the graffian follicle?
[2020]
(a) High concentration of Progesterone
(b) Low concentration of $LH$
(c) Low concentration of FSH
(d) High concentration of Estrogen
Show Answer
Answer : d
Hints & Solutions
(d) The gonadotropin (LH and FSH) increases gradually during the follicular phase, and stimulates follicular development as well as secretion of estrogens by the growing follicles. Both LH and FSH attain a peak level in the middle of cycle (about 14th day). Rapid secretion of LH leading to its maximum level during the mid-cycle called LH surge induces rupture of Graafian follicle and thereby the release of ovum (ovulation).
