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Fudgin [204]
4 years ago
12

When a population has a gene with two alleles circulating, how many possible genotypes are there?

Biology
1 answer:
marissa [1.9K]4 years ago
5 0
Its so simple. Two alleles means three genotypes.
consider a gene has two alleles A(blue eyes) and a(brown eyes)
possible combinations:
1. AA - Homozygous dominant -Blue eyes.
2. Aa - Heterozygous - Blue eyes.
3. aa - Homozygous recessive - Brown eyes.
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