CBSE 2026 · Region 5 · Set 3 · Q5 · 1 mark
If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is :
Official answer
From CBSE’s own marking scheme for this paper.
(D)
sex-linked recessive
Principles of Inheritance and VariationSex DeterminationRemembermcqmedium
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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.