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.
no
yes
o positive
no
No
No. They can have an O positive, an O negative, A B positive, or a B negative child.
Yes, if the father is heterogeneous positive.
yes
sometimes
yes