a-
It should be b-
mother could be either B or AB and she could also be Negative or Positive.
In your question you didn't explain the type O- is for who, the mother or father. but if we consider that the O- is for mother, for the child to come A+, the father should be A+ or AB+.
Possibly but it could be others as well.
The blood would be A+, the child's is always pretty much what the Father's is.
Yes. If the father is the AO variety of A, he can contribute an O and the mother can contribute the B, making a BO variety of B for the child. And, the father can give the Rh positive while the mother gives an Rh negative, which will be an Rh positive.
A-
Yes. If the mother is O, then her phenotype is O, and her genotype must be OO. If the father is B, then his phenotype is B, and his genotype could be BB or BO. If the father's genotype is BO, then he could pass his O to the child along with the mother's O, allowing the baby to be O. In fact statistically, half of their children would be B, and half would be O. The baby could inherit the positive from his father, who has positive. NB: In this particular scenario, since the mother is negative and the baby is positive, there is a chance of a blood match incompatibility between the two, and the mother should be given RhoGam to prevent her making antibodies against the positive antigens in the fetus blood.
Yes, people with any blood group can have a child.Problems can occur if the mother is Rh negative, and the baby is Rh positive - because the antibodies of the mother may act as if allergic to the baby.There should be no problems with a Rh positive mother.
When they become pregnant there should not be any problems related to the rhesus blood groups - this would only be a potential problem if the mother was negative, and the father was positive.
First of all, you should know that for a person to be positive there is two possible geno-typesRh+Rh+ or Rh+Rh-so to have a negative child both parents should be Rh+Rh---> and so Yes , this is possible but with possibility reach to 25%.
No. For a person to be "O" blood type, they have a phenotype of O, which can only come about if they have a genotype of OO. If both mother and father are O's then they have no B that they can donate to the baby.