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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 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


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.


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

yes.