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Biology · 2026 · 1 mark
CBSE 2026 · Region 5 · Set 2 · Q15
Assertion (A): The endometrium undergoes cyclic changes during the menstrual cycle. Reason (R): Perimetrium contracts strongly during delivery of the…
Assertion (A) : The endometrium undergoes cyclic changes during the menstrual cycle.
Reason (R) : Perimetrium contracts strongly during delivery of the baby.
Official answer
(C)
Assertion (A) is true, but Reason (R) is false.
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CBSE Class 12 Biology past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.