Multiple genes and the environment work together to control a polygenic trait.
Polygenic traits A polygene is a group of non-allelic genes that regulate a trait. A polygenic trait is one whose phenotype is influenced by more than one gene. The word "poly" implies "many."
Examples of polygenic traits include human height, eye, and hair color. For humans and many other animals, skin color is yet another polygenic feature. those qualities that are governed by multiple genes. Even genes on completely separate chromosomes may be responsible for controlling these features.
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