Polygenic inheritance, in simple terms, implies a character or phenotypic trait, which is regulated by more than one gene. In biology, it refers to the quantitative inheritance wherein two or more independent genes additively affect a single phenotypic trait.

What defines a polygenic inheritance?

the heredity of complex characters that are determined by a large number of genes, each one usually having a relatively small effect.

What is polygenic inheritance example?

Some examples of polygenic inheritance are: human skin and eye color; height, weight and inteligence in people; and kernel color of wheat. ... In polygenic inheritance the "dominant" capital genes are additive, each capital gene adding one unit of color to the genotype.