pleiotropy Definition
the phenomenon where a single gene affects multiple traits or has multiple effects on one trait.
Using pleiotropy: Examples
Take a moment to familiarize yourself with how "pleiotropy" can be used in various situations through the following examples!
Example
Sickle cell anemia is an example of pleiotropy, where the mutated gene affects multiple traits such as red blood cell shape and immune system function.
Example
The gene responsible for the white coat color in cats also causes deafness, demonstrating pleiotropy.
Example
Pleiotropy can have both positive and negative effects on an organism's fitness.
Summary: pleiotropy in Brief
Pleiotropy [plahy-ot-ruh-pee] is a genetic phenomenon where a single gene affects multiple traits or has multiple effects on one trait. Examples include sickle cell anemia and the gene responsible for white coat color in cats, which also causes deafness. Pleiotropy can have both positive and negative effects on an organism's fitness.
