If a child has blood type O and its mother has type A could a man with type AB be the father?
Yes it is possible. Blood type O is recessive. So it is true that the child would need an OO blood type. But if the mother is OO and the father is BO..... Then in this case the mother would contribute an "O" and the father a B or an O. If the father contributes an O then the child will be type O. Of course in order for this to happen the father must…
Yes, if both the father and mother have the genotype of AO, then they would both show up as phenotype A and they could have a child with type O blood. As O is recessive, the type A would be dominant and therefore show up as the blood type. The mother could contribute the positive Rh factor leading to type O+ in the child.
Is it possible to have a child with blood type AB when the mother having blood type O and the father having blood type A?
It depends on the mother's genotype. O blood is recessive, so the father has OO blood. Both A and B are dominant, so an AA or AO genotype would result in a type A blood phenotype. Since the father is homozygous recessive, he must donate an O. Therefore, for the child to be type A, the mother must donate an A to create an AO genotype for the child. So, if the mother has type…
Would it be possible if a father with a blood type B plus and a mother with A plus will result to a O plus?
If a mother is o negative blood type and father is B positive blood type can they produce a baby with A positive blood group?
Can a father with o negative blood type and a mother with o positive blood type have an a positive baby?
No. Either the mother or the father (or both) must have type A or AB blood in order for the child to inherit type A blood. Independently of their ABO blood type, either or both parents must also be Rh positive for the child to be Rh positive. In the case given, the baby could be Rh positive since the mother is Rh positive but it could not be type A since neither parent has…