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Science · 2026 · 3 marks
CBSE 2026 · Region 5 · Set 1 · Q13
Based on Mendel's experiment show the cross between round, yellow seeds of pea plant (RRYY) with wrinkled and green seeds of pea plant (rryy) upto $\displaystyle \mathrm{F}_{2}$ generation. Write the number of seeds/plants with following genetic (Genotype) makeup in $\displaystyle \mathrm{F}_{2}$ generation :(i)RRYY(ii)rryy
Based on Mendel's experiment show the cross between round, yellow seeds of pea plant (RRYY) with wrinkled and green seeds of pea plant (rryy) upto $\displaystyle \mathrm{F}_{2}$ generation. Write the number of seeds/plants with following genetic (Genotype) makeup in $\displaystyle \mathrm{F}_{2}$ generation :
(i)
RRYY
(ii)
rryy
Marking-scheme solution
RY Ry rY ry
RY Ry rY Ry
(i) RRYY - $\displaystyle 1$
(ii) rryy - $\displaystyle 1$
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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.