CBSE 2025 · Region 2 · Set 1 · Q13 · 1 mark
Assertion (A) : Corpus luteum secretes the hormone, progesterone.
Reason (R) : Hormone Progesterone is essential for maintenance of the endometrium.
Official answer
From CBSE’s own marking scheme for this paper.
(A)
Both (A) and (R) are true and (R) is the correct explanation of (A).
Human ReproductionMenstrual CycleUnderstandassertion_reasoneasy
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CBSE Class 12 Biology past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.