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18. A man with type AB marries a woman with type AB. probability that any particular child will be type 0? What is the
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Answer #1

0% probability of any child with blood group O .

When a man with blood group AB marries a woman with the same blood group that is AB , the blood group of the child will be A or B or AB. There will be no child with blood group O. As both the parents have AB blood group and they can only pass either A allele or B allele , so there progeny will never have the blood group O type .

l​​​​​​A​​​​​l​B (genotype of the man) × l​​​​​​​​​​​A​​​ l​​​ B(genotype of the woman)

Genotypes of the children:

I​​​​​​A I​​​​​​A (Blood group A type) , l​​​​​​A l​​​​​​B ( AB type) , l A l​​​​​​B , l B I B ( Blood group B type).

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