CBSE 2025 · Region 7 · Set 1 · Q14 · 1 mark
Assertion (A) : Replication of DNA takes place in S phase of the cell cycle. Reason $\displaystyle (R)$ : DNA replication and cell division cycle should be highly coordinated.
Official answer
From CBSE’s own marking scheme for this paper.
(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
Molecular Basis of InheritanceReplicationUnderstandassertion_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.