Asked by lenny
                A family member recently found out her child's blood group was AB+ yet hers is O+. 
i'm suppose to explain this oddity but i don't know how? so please help me!!!
thanks
            
        i'm suppose to explain this oddity but i don't know how? so please help me!!!
thanks
Answers
                    Answered by
            Dr Russ
            
    My understanding is that is not possible.  The only blood groups from an O mother are O, A or B, depending on the blood group of the father, but not AB. The mother would have to be A, B or AB.  So I would conclude that the mother is not the child's natural mother.
Unless I have missed something!
    
Unless I have missed something!
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