Define multiple alleles. How they are evolved? Give one example.

Explanation

The phenomenon of the presence of more than two alternate forms of a gene on the same locus is called multiple alleles. An individual carries only two alleles on its homologous chromosomes They are produced due to repeated mutations of the same gene but in different directions. The genes for ABO blood group `I^A , I^B` and i is the example of multiple alleles. Multiple alle. . express different alternatives of same character.