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

Parental information:

  • Mother type A pos -- genetically AA or AO and Rh (++) or (+-)
  • Father type O neg -- can only be OO and Rh (--)
Baby receives one gene from each parent:
  • Baby is type AO (+-) = Type A pos
  • Baby is type AO (--) = Type A neg
  • Baby is type OO (+-) = Type O pos
  • Baby is type OO (--) = Type O neg
NOTE: There is no gene B here to make the AB blood.

Generally the baby will be either Type A pos/neg or Type O pos/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.

  • What if baby is Type AB?
If type O parent has the inhibitory gene affecting his BB, BO or AB type,

then the Type AB baby is definitely possible.

2013-09-30 12:55:19
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Q: If one parent has A blood type and the other has O- is it possible for the baby to have AB?
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Related Questions

If one parent has B blood type and the other has O blood type is it possible for the baby to have A?

If one parent has blood type B and the other blood type O, it is possible to have a baby of blood type O or B. It is NOT possible (0% chance) to have a baby with blood type A.


If one parent has B and the other has o is it possible for baby to have a b?

Yes, the baby will have either B or O type blood.


What blood type will a baby have if one parent is A and the other O?

the baby will have the O BLOOD.


If one parent has A blood type and the other has O- what blood group may possible for their baby?

If with A + and O + Baby can have : A + or O + If with A + and O - Baby can have : A +, A-, O +, O - If with A - and O + Baby can have : A +, A-, O +, O - If A - and O - Baby can have : A + or O -


If one parent has B blood type and the other has A type blood is it possible for the baby to have O?

Yes, that is possible. The first parents has a genotype of BO, while the second parent has a genotype of AO. The parents have a 25% chance of producing a child with AB blood, 25% chance of A blood, 25% chance of B blood, and 25% chance of O blood.


What would be the parents blood type if the baby is B negative?

If a baby is blood type B, the one parent must have a B. The possible combinations are: One parent B (homozygous or heterozygous), other parent B (homozygous or heterozygous) One parent B (homozygous or heterozygous), other parent A (heterozygous) One parent B (homozygous or heterozygous), other parent AB One parent B (homozygous or heterozygous), other parent O One parent AB (homozygous or heterozygous), other parent O (homozygous or heterozygous) The Rh factor must be either positive heterozygous or negative in each of the parents.


If one parent has A positive blood and the other had A positive blood what type will the baby have?

The blood type would be A positive.


Can an AB blood and B blood parent can have an A plus blood baby?

Yes - AB Parent has genotype IA IB . If the parent with B blood has the genotype IBi, which is entirely possible, then there is a chance that the baby would be IAi, and would have type A blood. Plus/minus has to do with the RH factor in blood, so you can't tell from the information given whether the baby could be "plus". If one of the parents is RH+, the baby could be as well.


What blood type would the offspring have if one parent had A and the other had AB blood?

Well the baby can have blood type A or blood type B.


If both parents are blood Type A could they have a child with blood Type O?

We are looking for the possible blood types of a baby.Parental information:Mother type A -- can be AA or AO therefore can contribute A or OFather type A -- can be AA or AO therefore can contribute A or OBaby recieves one gene from each parent: Baby is type AA: recieves an A from each parentBaby is type AO: recieves an A from one parent and O from the otherBaby is type OO: recieves an O from each parentYES, the baby of two Type A parents can be Type O.


Can a parent with ab- blood and a parent with o- blood make a baby with a plus blood?

No, in this scenario the possible blood types for the children are A- and B-. Positive refers to the presence of Rh factor in the blood. The Rh factor has to come from somewhere.


If a woman is type A the baby is type A and the man is type B does this rule him out as the father?

No, it is possible for a child to inherit the identical blood type of one parent and nothing from the other parent. For example: Father A+, Mother O-, Child A+.


If one parent had type A blood and the other parent has type B blood is it possible that their unborn child gets type O blood?

Yes it is possible. Each person has two copies of the gene for blood type (one from mom, one from dad) and gives one of those two copies to the baby.There are three possible genes for those two positions: A, B, O. If you have A and O, you will be A; if you have B and O, you will be B. So it is possible for Mom to have type A and really be genes A,O and give baby her O gene, while Dad has blood type B with genes B,O and also gives baby his O gene, making baby O,O or type O.


What are the parents' blood types if a child has an AB blood type?

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What is your blood type if one parent is Type A blood and the other parent is Type B blood?

We are looking for the possible blood types of a baby.Parental information:Mother type A --can be AA or AO = contributes A or O geneFather type B -- can be BB or BO = contributes B or O geneBaby receives one gene from each parent: Baby is type AB = Type ABBaby is type AO = Type ABaby is type BO = Type BBaby is type OO = Type ODepending on the exact genotype of the parental blood types, the resulting children can be any one of the 4 ABO phenotypic blood types.yes


Can a parent with O negative blood type and a parent with A positive blood type have a baby with O positive blood type?

Of course!


What blood types would the offspring of a parent with AB and the other with Ao be?

The baby can be type A and B positive.


IS it possible for a baby to be conceived if one parent is human and one parent is wolf?

No.


Which parent supplies blood type to baby?

Both parents equally contribute to the blood type of the baby.


Can parents both blood type b will have blood type o positive child?

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With blood type O and blood type AB what are the possible blood types of the offspring?

We are looking for the possible blood types of a baby.Parental information:Mother type O --can only be OO = contributes the O geneFather type AB --can only be AB = contributes A and B genesBaby receives one gene from each parent: Baby is type AO = Type ABaby is type BO = Type BGenerally speaking, with these parents there would be a 50% chance of either having a Type A or Type B baby. 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 the Type O parent has the inhibitory gene affecting his Type A, B or AB blood, then other blood types for the baby are possible.


What blood type will a baby have if one parent is O positive and the other is AB negative?

o positive and a- b-


Which parent determines the blood type of the baby?

When a baby is born they are assigned a blood type. The blood type will come from each of their parents. Each parent donates one of their ABO alles to their child or children.


Can an O child come from the marriage of two A individuals?

We are looking for the possible blood types of a baby.Parental information:Mother type A -- can be AA or AO therefore can contribute A or OFather type A -- can be AA or AO therefore can contribute A or OBaby receives one gene from each parent: Baby is type AA: receives an A from each parentBaby is type AO: receives an A from one parent and O from the otherBaby is type OO: receives an O from each parentYES, the baby of two Type A parents can be Type O.


What blood type will the baby be if one parent is a negative and the other is o positive?

An A negative and O positive couple can have a baby of type A or type O with a negative or positive blood type. They will not have a baby of type B or AB.