What parental blood types can have a Type A positive child?

Answer 1

The child will either be A or O. This is because the child gets one from each parent. So, the parent who is A type is either AA or AO. The parent who is O type is OO (O is recessive). This child will either be AO or OO.

Answer 2

If both parents are homozygotes the child will be A positive, if one parent is homozygote and the other heterozygote the child will be A positive, if both parents are heterozygotes there is a probability of 3/4 that the child will be A a 1/4 to be O, likewise there is a probability of 3/4 that the child will be positive a 1/4 to be negative.

Answer 3

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 gene
• Father type A -- can be AA or AO = contributes A or O gene

Baby receives one gene from each parent:

• Baby is type AA = Type A
• Baby is type AO = Type A
• Baby is type OO = Type O

When the parents are both Type A, the baby will most likely be Type A, but there is a possibility that he will be Type O.

Answer 4

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

• Mother type O --can only be OO = contributes O gene
• Father type A --can be AA or AO = contributes A or O gene

Baby receives one gene from each parent:

• Baby is type AO = Type A
• Baby is type OO = Type O

The baby will have either Type A or O blood.

Answer 5

If the mother is homozygous, then all of the children have a 100% chance of having the type A allele. If the father is homozygous, then all children will have the type B allele, making all children with type AB blood. However, if each parent were heterozygous, then their offspring have a 25% chance of being type AB, 25% chance of being type B, 25% chance of being type A, or a 25% chance of being type O.

Answer 6

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

Available information:

• Baby Type A Rh factor positive = can be AA or AO with (++) or (+-)
• One parent must contribute the A and/or (+) gene in order to be A pos

Baby receives one gene from each parent:

Rh Factor Genes

• Mom type Rh (++) + Dad type Rh (++) = Baby type Rh (++)
• Mom type Rh (++) + Dad type Rh (+-) = Baby type Rh (++) or (+-)
• Mom type Rh (++) + Dad type Rh (--) = Baby type Rh (+-)
• Mom type Rh (+-) + Dad type Rh (+-) = Baby type Rh (++), (+-). (--)
• Mom type Rh (--) + Dad type Rh (+-) = Baby type Rh (+-), (--)
• Mom type Rh (--) + Dad type Rh (--) = Baby type Rh (--)

ABO Genes

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

As long as one parent contributes the Rh (+) gene the baby might be Rh positive. The time it would be impossible to have an Rh positive child is when both parents are Rh negative. And, as long as one parent contributes the A gene, the baby might be Type A. The time it would be impossible would be when the parents are both Type B.

Answer 7

Their child's blood type be 99% type A blood.

Answer 8

A