Can a mother with A- blood type and a father with O blood type have a baby with O blood type?

Answer 1

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.

Answer 2

Yes. The blood group depends on which two genes(one from the mother and one from the father) you have; there are three different genes that encodes for three different antigens attached to the surface of the red blood cell: A, B and O. Since O is recessive and both A and B are dominant, you'll need to receive the O-gene from both your parents to make it show - the father has obviously got two. If the mother in this case has the genotype AO, there is a possibility that the child may get the O-type, but if she's got two genes encoding A: AA, the O-gene from the father will be suppressed and the child's bloodtype will be A (genotype AO).

The minus after the A in the question only shows that the mother is negative for the Rhesus antigen, and has nothing to do with the ABO-system.

Possibilities: Mother AO, father OO - child's bloodtype AO 1:1 OO (two different bloodtypes possible, chances are the same for both)

Mother AA, father OO - child's blooodtype AO, see schedule below:

x A A

O AO AO

O AO AO

Answer 3

Yes, as a matter of fact he/she could have some other type of blood that neither of you have because if anyone related to either of you has had a different type of blood then you carry that gene and it could show up in your kid.

Answer 4

Nope.

Yes it is possible. The answer is similar to the reason two brown-eyed parents can have a blue-eyed child. Blood type occurs by inheriting one type from each parent. Using basic genetics someone with type A can be AA or AO . If the child's parents are AO and BO then the child can be AO, BO, AB or OO. The child has I believe a 1 in 4 chance of any of the 4 types occurring. The only possibilities that can be excluded are AA and BB.

Answer 5

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

• Mother type O -- can only be OO = Gene contribution = O
• Father type O -- can only be OO = Gene contribution = O

Baby receives one gene from each parent:

• Baby is type OO

Since the parents only have an O gene to contribute, the baby will be OO.

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 Type O parents has the inhibitory gene affecting his Type A, B or AB blood,

then the Type A baby is definitely possible.

Answer 6

i know that a mother with type o blood can have a child with type a blood. hope this helps!!

Answer 7

Not according to the Canadian Children's Rights Council.

Two parents with type "O" blood would have children with type "O" blood.

Answer 8

This is possible. As long as there is a geneotype of O in your family. But it is more likely for your child to have an A or B.