Depending on what kind of A the mother is, the baby can be either O or A. If the mother is homozygous A (AA), the child would be A for sure. If the mother is heterozygous A (AO), the child can be either O or A. This is because the A allele is dominant over the O allele, and each person has two alleles for the ABO blood type. The father's O alleles (OO) are recessive so it all depends on the mother.
A or B
No!
If my mother is b- and my dad is b+ could there be a child ab- please
Yes, this is totally possible.
ab+ a+ b+
Yes, it is possible for both mother and father to be RH positive and a child to be RH negative.
No, the child can be either A+ or O+...
No. it is not that possible. but hower it could happen
Yes.
No. The mother must be either AO or AA, and the father OO. No combination of these can give rise to an AB child. However, a negative mother and a positive father can have a negative child, by rhesus factors, if the father has genotype +-.
The father can be A-, A+, AB-, or AB+
For a baby with AB blood type : both parents should be AB. or one is AB and the other is B. or one is A and the other is B.