CBSE 2023 · Region 1 · Set 2 · Q15 · 1 mark
Assertion (A) : In an operon, the regulator and operator genes are not associated with the constitutive genes.
Reason (R) : Constitutive genes need not be repressed.
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 InheritanceRegulation of Gene ExpressionUnderstandassertion_reasonmedium
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CBSE Class 12 Biology past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.