Multiple Gene Inheritance,Polygenes,Quantitative Characters,Continuous Variation,Cumulative Inheritance

	Home
Multiple Gene Inheritance Skin Colour in Man Colour of Wheat Kernel Eye Colour in Drosophila Body Size in Chicken

Home >> Genetics >>Multiple Gene Inheritence>> Multiple Gene Inheritance

Your Ad Here

Multiple Gene Inheritance
The inheritance of two or more non-allelic genes controlling a single quantitative character in a cumulative fashion is called multiple gene inheritance. These genes are called multiple genes or polygenes.

The characters controlled by multiple genes are measured in degrees (quantity) and not counted. So they are called quantitative characters.

The quantitative characters do not show clear cut differences between individuals. So they cause continuous variations.

The multiple genes produce the character in a cumulative fashion. Each gene produces a small effect on the character. So the inheritance is also called cumulative inheritance.

The inheritance of skin colour in man is due to multiple gene inheritance.
1. Skin colour in man.
2. Colour of wheat kernel.
3. Eye colour in Drosophila
4. Body size in chicken
5. Corolla length in Nicotiana
6. Coat colour in cattle
7. Height in man and
8. Transgressive variation

	Home
Corolla Lenght in Nicotiana Coat Colour in Cattle Height in Man Transgressive Variation