Can I have an offspring of AB blood group if parents are O+ and B+?
Patient: hi  i want ur help to find the answer of the following.  "the blood group of a man is O+ and his wife's group is B+, but the group of their child is AB+.  is there any ambiguity about the child's legitimacy? is it possible? plz reply with logic and solid reason....." Doctor: Hi, dearI have gone through your question. I can understand your concern.  If husband's blood group is o positive and Wife's blood group is B positive then their child has no chance of having blood group AB positive.  Child can have blood group eitherO or B.  Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using health care magic. Wish you a very good health.