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Question

What is the maximum number of alleles a gene can have?


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Solution

Alleles:

  1. Alleles are alternative forms of a gene.
  2. A gene can have two or more alleles.
  3. In humans two allelic variants are common.
  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 IA, IB, and i.


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