CBSE 2025 · Region 7 · Set 1 · Q5 · 1 mark
Which of the following conditions correctly describes the manner of determining the sex in the given options ?
Official answer
From CBSE’s own marking scheme for this paper.
(B)
XO type of chromosomes determine male sex in grasshoppers.
Principles of Inheritance and VariationSex DeterminationRemembermcqmedium
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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.