Question

what is polygenic inheritance

Answer 1

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 human polygenic inheritance are height, skin color, eye color and weight.

Answer 2

ANSWER:-

POLYGENIC INHERITANCE:-

☘ Mendel assumed that each trait is controlled by two genes.

☘ The two genes associated with this process are located st the same locus of the chromosome.

☘ Certain traits are controlled by more than two genes located at different loci and are called multiple genes.

☘ Multiple genes are also known as polygenes.

☘ In polygenic inheritance, the intensity of the trait depends upon total number of genes involved.

☘ Genes that are involved in polygenic inheritance are called cumulative genes.

☘ Polygenic trait is usually controlled by more than one pair of non allelic genes.

☘ It shows different types of phenotypes.

☘ Inheritance of skin colour in human is an example of polygenic inheritance.

☘ It was studied by Davenport.

☘ According to him, three pairs of genes controls the skin colour.