Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

The ability of a gene to have multiple phenotypic effects because it influences a number of characters simultaneously is known as pleiotropy. The gene has multiple phenotypic effects because of its ability to control the expression of two or more characters is called a pleiotropic gene. In human beings, pleiotropy is exhibited by syndromes called sickle cell anaemia and phenylketonuria.