Biology
Grade-10
Easy
Question
When multiple genes affect a single trait, it is known as:
Polygenic inheritance
Codominance
Incomplete dominance
Pleiotropy
Polygenic inheritance
Codominance
Incomplete dominance
Pleiotropy
Hint:
Polygenic inheritance
The correct answer is: Polygenic inheritance
Polygenic inheritance refers to the inheritance of a trait governed by more than one genes. Generally, three or more genes govern the inheritance of polygenic traits. Multiple independent genes have an additive or similar effect on a single quantitative trait.
A polygenic trait is a characteristic, such as height or skin color, that is influenced by two or more genes. Because multiple genes are involved, polygenic traits do not follow the patterns of Mendelian inheritance.
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