Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in the \(\rm F_1\) generation are then cross-bred to produce \(\rm F_2\) generation of pea plants.

\(\bullet\) (b) What is the ratio of tall plants to dwarf plants in \(\rm F_2\) generation?

In the \(\rm F_2\) generation, the ratio of tall plants to dwarf plants will be 3 : 1.

Parents : TT \(\times\) tt
Gametes : T t
\(\downarrow\)

\(\rm F_2\) Generation \(\begin{array}{|c|l|l|}\hline
&\rm T&\rm t\\\hline
\rm T&\rm TT\text{(Tall}&\rm Tt\text{(Tall)}\\\hline
\rm t&\rm Tt\text{(Tall)}&\rm tt\text{(dwarf)}\\\hline
\end{array}\)