A polygenic trait is only controlled by one gene and influenced by the environment.

Question

• A polygenic trait is controlled by multiple genes and influenced by the environment.
• A polygenic trait is only controlled by one environmental factor.
• A polygenic trait is only controlled by multiple environmental factors.

Answer 1

The correct statement about a polygenic trait is:

A polygenic trait is controlled by multiple genes and influenced by the environment.

Polygenic traits are those traits that are influenced by multiple genes, often resulting in a continuous range of phenotypes. Additionally, environmental factors can also affect the expression of these traits. Examples of polygenic traits include height, skin color, and intelligence.