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Question
Genes that exist in more than two forms are called ______.
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Solution
Genes that exist in more than two forms are called multiple alleles.
Explanation:
Multiple alleles refer to the presence of more than two allelic forms for a gene at a particular locus in the population, though an individual can carry only two alleles. A classic example of multiple alleles is the ABO blood group system in humans, where three alleles (A, B, and O) determine the blood type. These multiple alleles provide a greater variety of genetic combinations than just two alleles would.
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