What is the maximum number of alleles a gene can have?
Alleles:
Example: Human blood group is controlled by three alleles IA, IB, and i.
What are alleles? What is the difference between alleles and genes? Are alleles parts of a gene?
Why do some genes have multiple alleles?
What is the difference between gene and allele. Is allele a part of the gene? Or is gene a part of allele?