Aperson receives an o allele and an a allele for blood type. what is the individual’s blood type? type a type b type ab type o

type A

Explanation:

If a person receives an O allele from one parent and an A allele from another parent then this person will have A type blood.

Blood group of a person is decided by the presence or absence of antigen A and B & their antibodies. We have ABO type of blood group system in which A and B antigens are co-dominant i.e. if both the antigens are present on the surface of red blood cells then the person will have AB blood group because both are equally dominant.

Rest of the blood groups and their allelic combinations are mentioned as under:

A blood group →  AA or AO

B blood group →  BB or BO

AB blood group →  AB

O blood group →  OO

In the given question the person has one O allele but it is receiving an A allele also. A allele is dominant on O allele so the person will have A type blood group.

O type blood group will be exhibited by a person only when it has both the alleles as 'O'.

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