If a heterozygous dominant tall pea plant is crossed with a short pea plant, what is the expected phenotypic ratio of tall: short plants?

2 (tall) :2 (short) or 1:1.

Explanation:

Mendel is known as the father of genetics. He explains the laws of segregation and the laws of independent assortment by working on the pea plant Pisum sativum.

The height of tall pea plant be T and the short pea plant be t. The cross between heterozygous dominant tall pea plant (Tt ) and short pea plant (tt) is as follows:

Parents           Tt         ×          tt

The progeny obtained from the cross are Tt, tt, Tt and tt.

Two tall pea plants and two short pea plants.

Thus, the phenotype ratio is 1:1.

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