) A woman with blood type O Rh- marries a man with blood type AB Rh+ who is heterozygous for the Rh factor. Which of the following could be the blood type of their child? A) AB RhB) O RhC) AB Rh+ D) B RhE) O Rh+
Question
) A woman with blood type O Rh- marries a man with blood type AB Rh+ who is heterozygous for the Rh factor. Which of the following could be the blood type of their child? A) AB RhB) O RhC) AB Rh+ D) B RhE) O Rh+
Solution
The woman can only pass on an O allele and an Rh- allele. The man can pass on either an A or B allele and either an Rh+ or Rh- allele.
So, the possible combinations for their child could be:
- O and A -> Blood type A
- O and B -> Blood type B
- Rh- and Rh+ -> Rh+
- Rh- and Rh- -> Rh-
Therefore, the possible blood types of their child could be A Rh+, A Rh-, B Rh+, or B Rh-.
So, the correct answer from the options given would be:
D) B Rh-
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