Question

A condition in which one gene pair masks the expression of a nonallelic gene pair is called ________.

Answer 1

Answer:

The condition is called EPISTASIS.

Explanation:

Epistasis is said to occur when two or more distinct genes contribute non-additively to the same phenotype. This occurs because one of the genes involve dominate or modify the other gene. There are various examples of genetic epistasis in nature. For instance, in a particular dog specie (Labrador) two genes control the color of the specie giving rise to three different coat colours in the dogs.