If the menstrual cycle is of 31 days, then ovulation will occur on:
A
8th day
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B
15th day
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C
20th day
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D
12th day
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Solution
The correct option is B 15th day 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). The most likely out of the options would be 15th day.