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We are looking for the possible blood types of a baby.

Parental information:

  • Mother type O neg = OO (--) can only contribute O and Rh (-)
  • Father type O neg = OO (--) can only contribute O and Rh (-)
Baby recieves one gene from each parent:
  • Baby is OO (--) or Type O neg
HOWEVER: There is more to ABO blood typing that just the ABO gene.

There is also an inhibitory gene that will change any genotype into the phenotype O.

Therefore a person with genetically AB blood can be tested as having Type O.

If one or both parents have the inhibitory gene affecting their AA/AO, BB/BO or AB type,

then the baby may not be Type O.

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What are the possible blood types the baby could have if the mother is type O-positive and the father has the rh-negative blood type?

The baby's blood type would depend on the specific genotype of both parents. With a mother who is O-positive and a father who is Rh-negative, the baby could potentially have blood types A-negative, B-negative, AB-negative, or O-negative.


What is the most likely blood type of the father if the mother is O positive and two children are A negative?

The father's blood type could be either A positive or A negative. The children inherited the A antigen from the father, resulting in their blood type as A negative. The Rh factor (positive or negative) is inherited separately, so the father could be either positive or negative.


If a mother has O negative blood and her child has A positive blood what type of blood should the father have?

The blood would be A+, the child's is always pretty much what the Father's is.


Will children of A neg blood type mother be A neg as well?

Not necessarily. A child's blood type is determined by the combination of both parents' blood types. If the father carries the A negative blood type, then it is possible for the child to be A negative as well.


Can a a positive father and a o negative mother produce a a negative child?

Yes, if both the mother and the father are carriers of the recessive Rh negative trait, they can produce a child with O negative blood type. The child would inherit one Rh negative allele from each parent, resulting in a negative blood type.

Related Questions

If the father's blood type is A positive and the mother's blood type is O positive can the child's blood type be O negative?

No, because a baby gets their blood from their father, not their mother.


Can a father who has a blood type O positive can he father a daughter who has O Negative Blood Type?

yes, the mother could o negative


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 blood type father and o negative blood type mother have an o positive child?

yes


What blood type will a baby have with a b negative mother and a a positive father?

B negative


Can a father with A-negative blood have a child with A-positive blood?

Yes, a father with A negative blood can have a child with A positive blood. If he does, the mother must have a positive Rh factor, and the mother's blood type may be any of the possibilities.


What is the blood type of a father with a baby with O positive blood type and mother is B negative?

father blood type could be (A,B, or O) positive.


If a mother's blood type is A positive and the baby's blood type is O negative what blood type could the father have?

The father's blood type must be O, Rh genotype can't be determined.


What are the possible blood types the baby could have if the mother is type O-positive and the father has the rh-negative blood type?

The baby's blood type would depend on the specific genotype of both parents. With a mother who is O-positive and a father who is Rh-negative, the baby could potentially have blood types A-negative, B-negative, AB-negative, or O-negative.


What blood type is the father is mother has type o positive and the baby have b negative?

"O" or "B"negative


Can a man with blood type a negative have a child with a lady with blood type a positive?

Yes. My mother is O positive and my father is O negative and I am O negative


Can parents with A negative mother and A positive father blood type have a child with an O positive blood type?

yes.