Question

A cross made between two pea plants produces 50% tall and 50% short pea plants. The gene combination of the parental pea plants must be ______.

Options

• Tt and Tt

• TT and Tt

• Tt and tt

• TT and tt

Answer 1

A cross made between two pea plants produces 50% tall and 50% short pea plants. The gene combination of the parental pea plants must be Tt and tt.

Explanation:

The observed ratio of 50% tall and 50% short plants indicates that the parental genotypes must be Tt (heterozygous tall) and tt (homozygous short).