phenotypic expression

Phenotypic expression refers to how an organism’s genes are manifested in its physical traits or characteristics. It is the observable result of the interaction between an organism’s genetic information and environmental factors. For example, eye color, height, and blood type are traits resulting from how genes are expressed. While genes provide the blueprint, their expression determines the actual features seen or measured. Some traits are influenced mainly by genetics, while others can be affected by environment. Overall, phenotypic expression is the way genetic information translates into the physical and functional features of an organism.