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Science · 2026 · 1 mark
CBSE 2026 · Region 2 · Set 1 · Q1
The genotype of green stemmed tomato plant is denoted by 'GG' and that of purple stemmed tomato plant as 'gg'. Hybrid of a cross between these two were self-pollinated to obtain $\displaystyle \mathrm{F}_{2}$ progeny. What will be the ratio of GG, Gg and gg in this $\displaystyle \mathrm{F}_{2}$ progeny?
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle 1$ : $\displaystyle 2$ : $\displaystyle 1$
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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.