they can only get either AB or B blood type children.
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.
I would need more information (like what blood types the child's grandparents are) to narrow it down. The child could be: - A negative - A positive - AB negative - AB positive - B negative - B positive
Depending on the genotype of the father BB or BO (BO is probably more likely), the child could be. AB, BB, BO or AO. If the father is BB the child can only be AB or BB. If the father is BO the child could be AB, AO, AO or BB.
To have a B type child with an AB father, the mother must have either B or O blood type. If the mother has B blood type, she can pass on either a B or O allele, while the AB father can pass on either an A or B allele. If the mother has O blood type, she can only pass on an O allele, which would result in a B type child when combined with the B allele from the AB father.
Yes. If the father is the AO variety of A, he can contribute an O and the mother can contribute the B, making a BO variety of B for the child. And, the father can give the Rh positive while the mother gives an Rh negative, which will be an Rh positive.
The father can be A-, A+, AB-, or AB+
A blood type O child would be impossible from this match. An AB parent must give an A allele or a B allele, and both alleles are dominant. If mother is homozygous B (meaning both alleles are B's), and father is AB, child can be either B or AB. If mother is heteroygous B (meaning one B allele and one O allele), and father is AB, the child can be either A, B, or AB.
A blood type O child would be impossible from this match. An AB parent must give an A allele or a B allele, and both alleles are dominant. If mother is homozygous B (meaning both alleles are B's), and father is AB, child can be either B or AB. If mother is heteroygous B (meaning one B allele and one O allele), and father is AB, the child can be either A, B, or AB.
Since both parents are Rh+, the child will also be Rh+.If the Mother is A0+ and Father is AB+, the child will be: AA+ AB+ AO+ or BO+ So yes this does produce a B+ child.If the Mother is AA+ and the Father is AB+, the child will be AB+ or AA+ neither of these is B+ so this doesn't produce a B+ child.
If my mother is b- and my dad is b+ could there be a child ab- please
If the mother is A, and the father is A, then the child will only have A antigens and will thus be blood type A. If father or mother are AB, then the child can end up with AB, A, or B blood type. http://en.wikipedia.org/wiki/Blood_type
Why not? If a mother is type AB, it means she has A and B antigens in her and zero antibodies. If the father is type A, B, or AB, there is a chance that the child can be type AB. It all depends on luck. If the father is type A, and he happens to donate that antigen, and the mother happens to donate the B antigen in her body, then voila! Type AB. If the father is type B, and he happens to donate that antigen, and the mother happens to donate the A antigen in her body, then voila! Type AB. If the father is type AB, and he donates either. The child can be type AB as long as the mother donates the opposite one. It's really all chance. If you are asking whether the mother will reject the blood type in the child, then of course not. They are the same blood type. Perfectly compatible.
A or B
The child will be A or B or AB, Rh+ or Rh- . So yes, the child can be A-.
either "AB" or "A".
Yes, if the Mother is type B or AB.
No.If the child's blood type is AB, even ignoring the positive/negative aspect of it (as Rh+/- is inherited separately), it is 100% not possible that either of the parents were type O.One of each of the types come from each parent. So an AB mother and an O father could only have a type A or type B child (think of it like AO or BO, one from mother, one from father).The actual father in this example will have type A, B, or AB blood.