Yes.
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.
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.
Of course! Blood type of the parents has absolutely no bearing on the health of the child.
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.
Given that the mother's DNA is A and the child is A positive, the father's DNA must also contain the A antigen. The father could be A positive, A negative, AB positive, or AB negative.