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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…
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
(A)
(ii) and (iii)
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CBSE Class 10 Science past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.