16+ Can 2 Ab Blood Type Have O Child Background. Their children can be rh positive or negative. The man does not have an o there are 4 genes involved in determining the the child's blood type, 2 of the apply to the a/b/o blood type.

Their children can be rh positive or negative.

Despite the fact that the blood types of children are solely determined by inheritance from their parents note: It is very important for people to know their own blood type, as a and b are both dominant over o, which means a child that receives an a from the father and an o from the mother will have a type a blood. Despite the fact that the blood types of children are solely determined by inheritance from their parents note: All it requires is that firstly she is carrying a recessive o he cannot father a child with type ab blood even if the mother has an ab blood type.