What would be a child's blood type of the mother is O and the father is A?

Answer 1

We are looking for the possible blood types for a father.

Available information:

• Mother type O -- OO can only contribute an O gene
• Baby type A -- has to be type AO since the mother contributes the O

Father contributes the A gene; therefore, his genotype might be:

• AA
• AO
• AB

With a mother type OO and baby type AO, the father would be either type A or AB.

Answer 2

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

Parental information:

• Mother type O pos -- can only be OO and Rh (++) or (+-)
• Father type A pos -- can be AA or AO and Rh (++) or (+-)

Baby recieves one gene from each parent:

• Baby is type AO Rh (++) = Type A pos
• Baby is type AO Rh (+-) = Type A pos
• Baby is type AO Rh (--) = Type A NEG
• Baby is type OO Rh (++) = Type O pos
• Baby is type OO Rh (+-) = Type O pos
• Baby is type OO Rh (--) = Type O NEG

Therefore, from O pos and A pos parents, their child might be Type A pos/neg or Type O pos/neg.

Answer 3

Could be any, we all get our blood groups from our parents or even our grandparents.

Answer 4

If the dad is homozygous for A (AA, ii): the baby is type A.

If the dad is heterozygous for A (Ai, ii): the baby is type A or O.

Answer 5

The baby could be type B or possibly type O depending on the dad's genotype.

Answer 6

With those parents, the possibilities are A or O. The + or - cannot be determined only from that information.

Answer 7

If the mother has blood type O+ and the father has blood type A- then the child could have any of the following blood types:

• O+
• O-
• A+
• A-

Answer 8

They will produced an O+ baby.