Question

A white rooster mates with a black hen. The offspring is gray in color. What is this phenomenon called? Is it a polygenic inheritance, coinheritance, single-gene dominant/recessive trait, or incomplete dominance?

Answer 1

The cross between the white rooster and black hen produced a gray offspring is an example of incomplete dominance. Incomplete dominance is when neither alleles from both parents gets fully manifested or dominant over another.