Polygenic Inheritance

Grain colour in wheat is determined by three pairs of polygene. Following the cross AABBCC (dark colour) and aabbcc (light colour), in $F_2$ generation, what proportion of the progeny is likely to resemble either parent?

What type of inheritance is the human skin colour?

Inheritance of human skin colour is a polygenic inheritance.

Explain the inheritance pattern of human skin colour.

When the inheritance of a character is determined by many genes with the same but cumulative phenomenon, the effect is called quantitative inheritance.

When two genes control a single character and have cumulative effect, the ratio is

What are polygenes? Explain with suitable example.

Skin colour is controlled by

Who studied the inheritance of skin colour in negro and white population in USA?

Who discovered polygenic inheritance?

The additive or cumulative effect is shown by

Define polygene.

What are polygenic characters?

Color of the skin in human beings is controlled by

A character in human beings is being controlled by 5 polygenes. The possible phenotypes are

A trait controlled by a gene at several loci is an example of

Skin color inheritance observed in man is an example of

The presence of continuous phenotypic variation in F₂ generation suggests that the character shows

If a black man marries a white skin female, the mulattoes are born. If such mulattoes intermarry, the progeny will show a gradual gradation of skin colour in the ratio of

In human beings, the colour of skin is controlled by