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Yes, it is possible that an A negative mother and a B positive father can have an O positive child. Because looking back to the basic of Genetics, Blood Banking, Immuno/Serology. A parents whose blood groups are A and B can possibly have all the blood groups in their offspring (A, B, AB, and O) most specially if both parents blood groups are A and B genotypes. When it says genotype, meaning the parents are either AO or BO. The genotypes are the genes/traits that are not expressed (recessive traits) or are hidden. Meaning that the O gene in an AO genotype blood is not expressed and only the A gene which is the Phenotype in that particular blood group is only expressed (dominant traits) thus showing as a type A blood, and same goes with the BO genotype blood group. So going back to the question if an A negative mother and a B positive father can have an O positive child, then the answer is YES most specially as I mentioned earlier if the both parents are A and B genotype blood group. Then when it comes to Rh grouping (being negative or positive) since both traits are present in the parents (A negative mother and B positive father) then all the offspring can inherit both traits.
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 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 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 an a positive mother and an a negative father make an o positive child?
Yes, the mother and father can have either an A or O child with the Rh factor of either - or +.
