When the expression of a trait is influenced by the action of many genes, the pattern of inheritance is called
A) incomplete dominance.
B) multiple alleles.
C) polygenic inheritance.
D) discontinuous variation.
E) complete dominance.

Question

Quizplus · Accepted Answer

Polygenic inheritance refers to the phenomenon where a single trait is controlled by two or more genes, each of which may have two or more alleles. This results in a continuous range of possible phenotypes, such as skin color, height, and eye color, rather than a simple 'either-or' phenotype.

When the Expression of a Trait Is Influenced by the Action