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Man with blood type A means it have two cases either pure or homozygous A i.e. AA or heterozygous A i.e. AO and ofcourse woman will be pure OO
so there are two possibilites
1 In first case of homozygous man 100% children will be of AO
2 In heterozygous condiiton of man 50% will be of AO and 50% chances of OO

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14y ago
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11y ago

Yes, just as a B mother and type B father can have a type O child. My parents actually have two of them, including me.

Each person has two ABO alleles, one from each parent. There are three basic ABO alleles -- although there are actually many subtypes. The basic types are A, B, and O.

It only takes one A or one B allele to have type A blood, although if a person happens to have both, that person's blood type will be AB. However, if you inherit either an A allele from one parent, and an O allele from the other, or an allele from each parent, you will have type A blood.

The same thing is true for type B. Whether both your parents give you a B allele, or one gives a B allele and the other an O allele, you'll still have type B.

Now, to have type O blood, you have to inherit an O allele from each parent. Since I know my parents both have type B blood even though one of my sisters and I have type O, I also know that each of my parents must have had one B allele and one O allele.

Having type B blood is their "phenotype", but their "genotype" is B/O.

So to get back to the original question, if two parents have a type A phenotype but a genotype of A/O, then they can have children with any of these genotypes: A/A, A/O, or O/O. The first two of these will have type A blood, but the last will have type O.

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Q: Man with type o blood marries woman with type a what are chances of child having type ao?
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