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Yes, I will explain how.
A person with blood type AB has one A and one B gene. Only one is passed on to the child. So, for this question, the child got the B gene.
A person with blood type A can have either two A genes (AA) or one A and one O (AO). A is dominant to O, so A is the blood type expressed. Once again, only one gene is passed to the child. The mother in this case must be AO, because an AA mother could only pass on an A to the child. A+B=AB, because A and B are both dominant genes and are both expressed. The mother passed on the O gene.
So, the father is AB, the mother is AO, and the child is BO (type B).
Rh factor is passed on in the same way and also involves dominance. Positive (+) is dominant to negative (-). An Rh+ person can be (++) or (+-). An Rh- person has to be (--). For the child in this question that means both parents must have a (-) to pass on. This tells us that the father is (--) because we know he is Rh negative, and the mother is (+-) because we know she is Rh positive, but she also had to pass on a (-).
Father = AB(--)
Mother = AO(+-)
Child = BO(--)
What else can I help you with?
If the DNA of the mother is A and the child is A pos what is the DNA of the father?
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.
Can an O positive mother and an O negative father have an A positive child?
No. The child will be type O+ or O-.
Can an O negative mother and an A positive father produce an O positive child?
Yes. The father's phenotype is AO+*; the mother's is OO--.
Can an ab negative father and o positive mother parent an o positive child?
for sure
Can an a positive father and an b negative mother have an ab negative child?
yes it dependsupon the genotype and phenotype
Can an o positive father and a b negative mother have a child with a positive?
No. They can have an O positive, an O negative, A B positive, or a B negative child.
O positive father and A negative mother what will child be?
o positive
Can a o positive mother and a positive father make a a negative child?
no
Can a A positive mother and an O negative father have an A positive child?
yes
Can an A positive father and a B positive mother have a B negative child?
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.
If the DNA of the mother is A and the child is A pos what is the DNA of the father?
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.
If mother is positive and father is negative is it possible the child would be negative?
If mother is heterozygote yes.
Can a o negative blood type father and a negative blood type mother have o positive child?
I'm not sure how negative or positive is determined, but a B mother and O father can have a B child.
Can an O negative father and a B positive mother have a O negative child?
no
Can a b positive mother and an o negative father have a b negative child?
no
Can o positive father and a positive mother have a negative child?
if your child is negative, i would ask for a blood sample from the mailman
Can an O positive mother and an A Negative father make an A Positive child?
yes.
