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A member asked:

The mother blood type is o- and the father blood type is o+ and they have two children one of them blood type is ab+ and the other one is b+. how?

A doctor has provided 1 answer

Adoption: If this is just a puzzle adoption is the answer. These 2 designated parents will not have offspring with the listed blood types. Either there are mistakes in the type testing for the kids/parents or another factor is involved.

Answered 9/19/2018

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