CBSE 2026 · Region 5 · Set 1 · Q13 · 1 mark
Assertion (A) : The embryo with $\displaystyle 8$ to $\displaystyle 16$ blastomeres is called a morula. Reason $\displaystyle (R)$ : The morula continues to divide and transform into trophoblast.
Official answer
From CBSE’s own marking scheme for this paper.
(C)
Assertion (A) is true, but Reason (R) is false.
Human ReproductionPregnancy and Embryonic DevelopmentRememberassertion_reasonmedium
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CBSE Class 12 Biology past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.