Yes.
If the mother has one A gene and one O gene, and the father has one A gene and one O gene, some children may inherit the O gene from both parents, and therefore be type O.
If the father is heterozygous (one gene is Rh+) Rh positive, the chances are 50% that the child will be positive. If the father has both genes Rh+, the child will not be Rh negative.
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.
no
yes
o positive
no
No
Yes. The father's phenotype is AO+*; the mother's is OO--.
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.