Question

What is the meaning of allele?

Answer 1

Alleles:

1. Alleles are alternative forms of a gene.
2. There are dominant alleles and recessive alleles.
3. Dominant alleles get expressed over recessive alleles.
4. The two alleles are inherited, one from the father and one from the mother.
5. More than two alleles can exist for a gene in the population.

Example: Human blood group is controlled by three alleles I^A, I^B and i.