If a heterozygous Group A mates with a heterozygous Group B, which phenotypes are possible for their offspring?

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Multiple Choice

If a heterozygous Group A mates with a heterozygous Group B, which phenotypes are possible for their offspring?

Explanation:
In ABO genetics, IA and IB are codominant and i is recessive. If one parent is IA i (A) and the other is IB i (B), each parent can pass either IA or i and IB or i, respectively. The possible offspring genotypes are IA IB (AB), IA i (A), IB i (B), or i i (O). Therefore, all four phenotypes—A, B, AB, and O—can appear in the next generation.

In ABO genetics, IA and IB are codominant and i is recessive. If one parent is IA i (A) and the other is IB i (B), each parent can pass either IA or i and IB or i, respectively. The possible offspring genotypes are IA IB (AB), IA i (A), IB i (B), or i i (O). Therefore, all four phenotypes—A, B, AB, and O—can appear in the next generation.

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