NEETZoologyHuman Reproduction
Read the following statements regarding the events of the menstrual cycle and choose the incorrect statement.
Options
- ABoth LH and FSH attain a peak level in the middle of the menstrual cycle.
- BRapid secretion of LH leading to its maximum level during the mid-cycle is called LH surge.
- CThe peak secretion of progesterone during the mid-cycle induces the rupture of Graafian follicle.
- DThe rupture of Graafian follicle results in the release of ovum.
Correct answer
C. The peak secretion of progesterone during the mid-cycle induces the rupture of Graafian follicle.
Step-by-step solution
According to NCERT, both LH and FSH attain a peak level in the middle of the cycle (about 14^ th day). Rapid secretion of LH leading to its maximum level during the mid-cycle is called LH surge. This LH surge directly induces the rupture of the Graafian follicle and thereby the release of the ovum (ovulation). Progesterone is secreted in large amounts by the corpus luteum during the luteal phase (after ovulation) to maintain the endometrium, not during the mid-cycle. Therefore, the statement claiming that peak secr