The RH factor of the parents has absolutely NO bearing on whether or not they can conceive children. The 100% accurate way to determine parenthood is via a DNA test.
If the mother is A negative, and the father is B positive, they could have children who are A negative, A positive, B negative, B positive, AB negative, AB positive, O negative, or O positive.
The father's blood wil be positive, but can be either A, B, O, or AB. Nathalie
Yes.
# yes, if father is + - for RH and mother - - (negative) or + - (positive); the father can generate sons A, B, or AB depending by mother's group.
Yes. The father's phenotype is AO+*; the mother's is OO--.
o positive
no
no
yes
If mother is heterozygote yes.
The mother must be heterozygous b and the father must be both heterozygous b and heterozygous positive.
Yes, if the father is heterogeneous positive.