Single gene pairs play a crucial role in development. however, it is more common that developmental outcomes occur because of the interaction of multiple genes. this is known as

Answer;

-Polygenic inheritance

Explanation;

-Polygenic inheritance occurs when one characteristic is controlled by two or more genes. Often the genes are large in quantity but small in effect.

-Examples of polygenic inheritance in nature can be found in many places: in human height, skin color, and hair color; in animal size, longevity, or disease resistance; and in plants with grain color, length of maize, or flower size. All of these traits are influenced by multiple genes and considered polygenic.

answer; hypnagogic sensations)