Can parents with B positive and O positive have a child with A positive blood type?

Answer 1

A B positive child will have B antigen (agglutinogen) in his blood. Since O+ve blood has neither A nor B antigen and A +ve blood does NOT have B antigen, the baby will naturally have no B antigen in his blood. It may be either A or O ; but not B or AB.

Answer 2

It's a mix of your parent's genes, but because of the way the genetics works, you may end up identical to one or the other parent, or completely different!

Everyone has two copies of the A, B, or O genes. A and B are codominant over O, so if someone is "A O" genetically, they show up as A. The only way to have type O blood is to be "O O" genetically. "B O" means type B, "A B" means type AB, "A A" means A, and "B B" means B.

Each parent gives one of their copies to the child. If one parent gives an O copy, however, it can be hidden by the other parent's dominant A copy, for example.

Here's an example of what sort of blood type's the children would have if a type A person with "A O" genes and a type B preson with "B O" genes had kids:

AB - type AB blood

AO - type A blood

BO - type B blood

OO - type O blood

Each parent gives one copy, so it is a mixing of genes, but sometimes the child ends up seeming just like one of their parents, and sometimes completely different.

The + or - part work the same way. This is called the Rhesus factor, and + is dominant over -. "+ +" means + type, "+ -" means + type, and "- -" means - type. Again, one copy from each parent to the child. Imagine if a "+ +" person had kids with a "- -" person. All of the kids would be "+ -" and look just like the "+ +" person, even though they have one of the "- -" person's genes!

There are some rare situations where dominance gets screwed up, and someone can carry a + gene without showing up as having + blood, but virtually all of the time, this is how it works. It's a mix of your parent's genes, but because of the way the genetics works, you may end up identical to one or the other parent, or completely different!

Everyone has two copies of the A, B, or O genes. A and B are codominant over O, so if someone is "A O" genetically, they show up as A. The only way to have type O blood is to be "O O" genetically. "B O" means type B, "A B" means type AB, "A A" means A, and "B B" means B.

Each parent gives one of their copies to the child. If one parent gives an O copy, however, it can be hidden by the other parent's dominant A copy, for example.

Here's an example of what sort of blood type's the children would have if a type A person with "A O" genes and a type B preson with "B O" genes had kids:

AB - type AB blood

AO - type A blood

BO - type B blood

OO - type O blood

Each parent gives one copy, so it is a mixing of genes, but sometimes the child ends up seeming just like one of their parents, and sometimes completely different.

The + or - part work the same way. This is called the Rhesus factor, and + is dominant over -. "+ +" means + type, "+ -" means + type, and "- -" means - type. Again, one copy from each parent to the child. Imagine if a "+ +" person had kids with a "- -" person. All of the kids would be "+ -" and look just like the "+ +" person, even though they have one of the "- -" person's genes!

There are some rare situations where dominance gets screwed up, and someone can carry a + gene without showing up as having + blood, but virtually all of the time, this is how it works.

Answer 3

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

Parental information:

• Mother type A pos = can be AA or AO and Rh (++) or (+-) Genes A, O, (+), (-)
• Father type B pos = can be BB or BO and Rh (++) or (+-) Genes B, O, (+), (-)

Baby recieves one gene from each parent:

• Baby is type AA with Rh (++) or (+-) or (--) = Type A pos/neg
• Baby is type BO with Rh (++) or (+-) or (--) = Type B pos/neg
• Baby is type AB with Rh (++) or (+-) or (--) = Type AB pos/neg
• Baby is type OO with Rh (++) or (+-) or (--) = Type O pos/neg

YES, parents who are A+ and B+ can have a Type O+ child.

Answer 4

No. Their children could be A, B, AB but not 0.

Answer 5

Yes, if the parents have O+ve blood type as a recessive trait in their genotype. But pure AA genotype and BB genotype parents cannot.

Answer 6

Yes, it is quite possible for this to happen.

Answer 7

No. A person with type B blood can have a genotype of BB or BO, the person with O has to have OO, so there is no way they can have a person with blood type A.

Answer 8

No, it is impossible. A person with B blood type has a genotype of either BB or BO, and a person with O type blood has a genotype of OO. Where does the A come from then?

Answer 9

NO