PATHOLOGY

Detailed explanation-1: -Polygenic inheritance is the inheritance of traits or characters influenced by multiple genes. Polygenic inheritance involves the governance of three genes. The trait height is an example of a polygenic trait that is controlled by at least 3 genes. Individual height varies and has a wide range of possibilities.

Detailed explanation-2: -Inheritance of skin pigmentation is an example of polygenic inheritance. Skin color in humans is controlled by at least three genes. The genes determine the amount of pigment melanin produced.

Detailed explanation-3: -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. Many polygenic traits are also influenced by the environment and are called multifactorial.