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Demetris Boehm

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2y ago
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15y ago

Yes. Humans are diploid so every person inherits two versions of all genes that are not on the sex chromosomes (There are certain exceptions to this in conditions such as Downs syndrome). The gene determining the ABO blood group of the is not on a sex chromosome so every person inherits two copies of the gene. This gene has 3 versions known as alleles. The genes for A and B are Co-dominant and are thus are both expressed in a person who has both. A and B are also dominant over the O type, so any person with O blood type must have inherited O from both their parents. The parents in the question must both be carrying the O allele which is not expressed because A and B are dominant over it. The child could then inherit one O allele from each parent producing a blood type of O.

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11y ago

No. One parent would have to have a B allele in order for the baby to inherit a B allele. The genotypes for blood group A are AA or AO. The genotype for O is OO. So neither parent in this case would have a B allele to pass on to a baby. With the two parents in this case, only a type O or type A baby is possible.

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11y ago

Yes. Both parents would have to be heterozygous AO and BO and then pass on their O alleles to their O positive child.

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14y ago

Yes.

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12y ago

no

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Q: Can A positive and B positive make O positive?
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Related questions

What blood type does a 0 negative and a b positive make?

The possibilities include B positive, B negative, O positive, O negative.


Can O positive and O negative make B negative?

Yes


Can B negative and O positive make O negative?

Yes


Can a A positive and O make a b type child?

no


Can an o positive father and a b negative mother have a child with a positive?

No. They can have an O positive, an O negative, A B positive, or a B negative child.


Can a b positive father and a negative mother make a o positive child?

yes


Can an ab positive mother and an A positive father make an o positive baby?

yes it will come A positive or B positive


Can o positive father and b positive mother have o negative child?

That depends on if you make love with the actual father


Can o positive mother and b positive father have b negative child?

That depends on if you make love with the actual father


If I am O positive blood type and I had three children that are O positive blood type and one that is B positive blood type what could that make my husband's blood type be?

a recessive O or B blood type


Can an ab negative father and an o positive mother make an a positive baby?

yes it will come A positive or B positive


Can parents who have B negative and O positive blood types have a child with B positive blood?

Yes. They can have B+, B-, O+, and O-.