CBSE 2026 · Region 3 · Set 1 · Q15 · 1 mark
Assertion (A) : DNA cannot pass through cell membrane of a bacterial cell.
Reason (R) : DNA is a hydrophilic molecule.
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 InheritanceThe Search for Genetic MaterialUnderstandassertion_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.