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A member asked:
If mothers blood group is rhs o neg and baby blood group is o positive what would the fathers blood group be?
A doctor has provided 1 answer
Father's blood type: Father is O positive. In the A-B-O nomenclature, A and B and dominant and Rh + is dominant over Rh -. That means that the baby had to get an O allele from both mother and father and at least one Rh + allele from a parent. Mom is OO neg neg and that means that the father has to be OO pos neg or OO pos pos. Either way, the father is phenotypically O pos.
Answered 8/2/2020
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