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Science · 2026 · 1 mark
CBSE 2026 · Region 1 · Set 1 · Q6
Sex is determined by different factors in various species. However, in human beings, it is determined genetically. Which amongst the following option(s) is/are correct for human beings ?(i)Gamete carrying X chromosome from female parent.(ii)Gamete carrying X chromosome from male parent.(iii)Gamete carrying Y chromosome from male parent.
Sex is determined by different factors in various species. However, in human beings, it is determined genetically. Which amongst the following option(s) is/are correct for human beings ?
(i)
Gamete carrying X chromosome from female parent.
(ii)
Gamete carrying X chromosome from male parent.
(iii)
Gamete carrying Y chromosome from male parent.
Official answer
From CBSE’s own marking scheme for this paper.
(A)
(ii) and (iii)
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CBSE Class 10 Science past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.