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Step2247 [10]
3 years ago
11

explain why a father with blood group AB cannot donate for a child with blood group O when he marries a woman with blood group O

​
Biology
1 answer:
denis-greek [22]3 years ago
7 0

The odds are astronomical for a father with AB(IV) to have an O(I) child. The only possible way for this phenomenon to occur is if there was a nondisjunction in the ovogenesis for the 9th chromosome and the father also had a nondisjunction for the same chromosome(A sperm cell with no 9th chromosome fertilized an ovum with two 9 chromosomes).

A person with AB cannot donate to a person with O because the receiver has antibodies(alpha and beta) that bind to the antigens on the AB blood cells, causing death.

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