If one parent is type A blood type and the other parent is type B blood type could they have a child that is A blood type?

Answer 1

We are looking for the possible blood types of the FATHER.

Available information:

• Mother type B -- can be BB or BO = contributes the B or O gene
• Baby type A -- must be AO with mother contributing the O gene

Baby receives one gene from each parent:

• Mom type BO + Dad type AA/AO = Baby type AB, AO, BO OO
• Mom type BO + Dad type BB/BO = Baby type BB, BO, OO
• Mom type BO + Dad type AB = Baby type BB, AO, AB, BO
• Mom type BO + Dad type OO = Baby type BO, OO

In order for the baby to be Type A when the mother is Type B, the mom must contribute the O gene and the father the A gene. The father will be Type A or AB.

Answer 2

Yes they can! A "Bloodtype" has two alleles. So a woman who is an "A" blood type can be either AA, or she can be Ao. A man with a "B" bloodtype can be either a BB, or a Bo. A and B are each dominant bloodtypes, and o is recessive. So if a person receives an A from one parent and an O from the other, they are an A. If they receive a B from one and an O from another, they are a B. In order to be an "O" bloodtype, a person must have received an "O" from each parents. So therefore, if a Mom who is an Ao gives the fetus and "o" and the Dad who is a "Bo" gives the fetus an "o" also, you will have a fetus who is an "oo," thus an "O." This fetus, btw, will be compatible with the mother, because she will produce B-antibodies, but not O-antibodies, so she won't produce antibodies that would harm the fetus. All good!

If, however, a Mom who is an "AA" mates with a Dad who is a "BB," they cannot produce an O.

Nor could they if Mom is "Ao" and Dad is "BB"

or if Mom is "AA" and Dad is "Bo."

To produce an O child, each parent must possess one "O."

The "A" mom and "B" dad could also produce an "AB" child, or, if the mother and father are both following a bloodtype assiduously--and i mean without deviation--a "B" child. (If the Mom who is "Ao" gives the child an "o" and the father gives a "B." That is because, we only produce antigens with markers of our own bloodtypes, and accompanying antibodies against other bloodtypes, when we consume foods that are not compatible with our bloodtype. So the problem of "incompatibility" is resolved if neither partner, during the 6 months prior to conception (and Mom during gestation) ever eats a food that would cause them to produce antibodies against the other's types.

So, if an "A" Mom and a "B" Dad are each assiduously eating "right" for their bloodtype, they could produce:

1) An "oo" child

2) an "AB" child

3) a "Bo" child

4) an "Ao" child.

But the first result is the most likely to occur, and to carry to term, because so many things so easily trigger the production of Anti-B antibodies in an "A" Mom, that results (2) and (3) would likely fall prey to spontaneous miscarriage.

Answer 3

We are looking for the possible blood types of the FATHER.

Available information:

• Mother type A --can be AA or AO = contributes A or O gene
• Baby type B --can only receive the O gene from the mother

Baby receives one gene from each parent:

• Mom type AO + Dad type BB/BO = Baby type BO, AB, AO, OO
• Mom type AO + Dad type AB = Baby type BO, AA, AO
• Mom type AO + Dad type OO = Baby type AO, OO

Generally speaking the dad cannot be Type O (OO) or Type A (AA or AO), since neither of these blood types would give the baby the necessary B gene.

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 Dad is Type O and has the inhibitory gene affecting his B or AB type,

then the Type B baby is definitely possible even from an AO x OO mating.

Answer 4

yes... for example, Im blood type B-, and my mother is 0+ while father is AB-. thus, parents can have different blood type if a child is blood type b.

Answer 5

If the type B parent is genotype BO, they could have a child who is type A.

Answer 6

Yes, this happen because of the mixing of genes between both parents which will cause the born of a child with new blood type.

Answer 7

Yes they can. Combining the genes of both parents blood type can give the child a different blood type.

Answer 8

Yes, look at the related link.

Answer 9

yes.