CBSE 2026 · Region 4 · Set 1 · Q14

Study the given table and answer the following questions :

Parents	$\displaystyle \mathrm{F}_{1}$	$\displaystyle \mathrm{F}_{2}$
A pea plant with red flowers was crossed with a pea plant with white flowers.	$\displaystyle 30$ seeds were sown and all bore plants with red flowers.	$\displaystyle 44$ seeds were sown, $\displaystyle 33$ plants bore red flowers and $\displaystyle 11$ plants bore white flowers.

(a)

Depict the information given in the table in the form of a cross.

(b)

Deduce the $\displaystyle \mathrm{F}_{2}$ phenotypic ratio/ $\displaystyle \mathrm{F}_{2}$ ratio showing external look as well as genotypic /genetic makeup, ratio.

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