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jarptica [38.1K]
3 years ago
7

The ABO blood group has three alleles (A, B, O). If a woman with genotype AO mates with a man with genotype BB, the expected pro

portion of heterozygotes among their offspring is A. 50 percent OB. 5 percent c. 100 percent D. 25 percent
Biology
1 answer:
blagie [28]3 years ago
6 0

Answer:

C. 100 percent

Explanation:

The woman is heterozygote: AO, while the man is homozygote: BB

By crossing the two:

AO   x  BB

A+B, A+B, O+B, O+B

AB, AB, OB, OB

We have two AB and two OB offspring. Both AB and OB are heterozygotes.

Thus all their offspring will be heterozygous.

<em>Had the question asked what proportion will be OB, the answer would have been 50%.</em>

Since the question asked, what proportion will be heterozygotes and not about the specific genotype, the correct answer is C. 100 percent

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