Question

Is eye color polygenic inheritance?

Answer 1

Polygenic Inheritance

1. Polygene refers to the gene which exerts a slight effect on a phenotype along with other genes.
2. Effect of a single gene is too small, so it is very difficult to detect.
3. Multiple genes also produce an equal effect.
4. Each allele has a cumulative or additive effect.
5. The colour of the eye is determined by the polygenes.
6. At least 9 colours of eye colour are recognised in humans. There are two major eye colour genes and 14 more genes which determine the expression of the phenotype.