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The child may have either O or B blood type, assuming that the mother has a recessive allele for O blood type. A child of parents with both positive and negative Rh factor may have either. So, the child could have O positive, O negative, B positive, or B negative blood types.

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Q: What happens when blood group of father is O positive and mother is B negative of an unborn child?
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Related questions

Is mother is rh positive and father is rh negative what happens?

What happens if a mother is Rh positive and a father is Rh negative is that they mother is given a RhoGAM shot when she gives birth. She will have to do this each time she gives birth, even if the births are not live.


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.


What happens if mother is rh positive and father is rh negative?

The rhogam shot is routinely given to mothers who are rh negative who may have rh positive babies. If you are rh positive there is no need to get the shot. However, if you are rh positive and get the shot it will not effect you or the baby.


Can an A positive father and A negative mother produce both A positive and A negative children?

Yes.


Caan ab positive father an a negative daughter?

# yes, if father is + - for RH and mother - - (negative) or + - (positive); the father can generate sons A, B, or AB depending by mother's group.


Can o negative mother and A positive baby have B positive father?

no


Can a A positive mother and an O negative father have an A positive child?

yes


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 an A positive mother and a B positive father have an O negative child and why?

No


Can A positive father and A negative mother produce a O positive child?

Yes. The father's phenotype is AO+*; the mother's is OO--.


If mother is positive and father is negative is it possible the child would be negative?

If mother is heterozygote yes.