Human reproductive system and gametogenesis

NCERT Biology Class 12, Chapter 2

Human reproductive system and gametogenesis NEET Biology MCQ

Last updated: July 30, 2026

Reviewed by MedQGo Editorial Team | Last updated: July 30, 2026

If fertilization does not occur, during which phase of the menstrual cycle does the corpus luteum degenerate?

AFirst 4 days
B5th to 14th day
C15th to 20th day
D21st to 25th day

Correct answer: D. 21st to 25th day

The corpus luteum degenerates during the luteal phase, which is from the 21st to the 25th day of the menstrual cycle if fertilization does not occur.

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The determinant of gender isDuring which phase of the menstrual cycle does the dominant follicle produce a large amount of estrogen?Which hormone is most crucial for the occurrence of ovulation during the menstrual cycle?