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Human Reproduction — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYHuman Reproduction1 Mark
MCQ
Onset of menstruation is due to:
  • ✓
    Fall in level of progesterone
  • B
    Increase in level of progesterone
  • C
    Increase in level of $\text{FSH}$
  • D
    None of these
✓

Answer

Correct option: A.
Fall in level of progesterone
The uterine lining dies due to the deficiency or reduced level of progesterone in blood and is sloughed off.
Blood vessels rupture, causing bleeding.

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