CBSE 2025 · Region 5 · Set 1 · Q5 · 1 mark
Colostrum secreted by the mother's mammary glands in a human female during the initial days of lactation is rich in antibody :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
IgA
Human ReproductionParturition and LactationRemembermcqmedium
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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.