CBSE 2025 · Region 2 · Set 1 · Q4 · 1 mark
In a pedigree chart ' ' represents :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
mating between relatives (consanguineous mating)
Principles of Inheritance and VariationSex DeterminationRemembermcqeasy
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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.