Explain the reason the Type AB and Type O blood phenotypes always have the same

Biology

1 answer:

Novosadov [1.4K]3 years ago

4 0

Answer:

Because A is co-dominant to B and O is recessive, so the genotype is the same as the phenotype. But A can have 2 genotypes because A can mask a recessive allele, which makes the phenotype A. B can also mask a recessive allele, which makes the phenotype B.

Examples

AO (genotype) = A (phenotype)

BO (genotype) = B (phenotype)

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