Yes. Since the Rh factor is recessive if both parents have a copy of the gene they can have an Rh negative child.
If they are both O negative, no, the child will be O negative.
No, they will have a O negative child.
No, an O negative child cannot have both parents with O positive blood types. While both parents can pass on an O allele, they would each contribute a Rh positive factor, resulting in a child with a positive Rh factor. For a child to be O negative, they must inherit the Rh negative factor from both parents.
No. Two rhesus-negative parents cannot have a rhesus-positive child.
Yes.
A or O positive or negative
No, if both parents are type O, the child must be type O. However, since one parent is positive and the other is negative, the child could be either positive or negative.
it is possible but the child can be a positive
No. The child would be O and Rh+ just like the parents.
yes
yes
No, parents with B negative and AB positive blood types cannot have a child with O negative blood type. The O blood type is inherited from both parents who must pass on the O allele to the child. Since neither parent in this case carries the O allele, they cannot have a child with O negative blood type.