Which statement describes the blood type of a person with the alleles IAi?

Question

It is type AB because I and i are codominant.
It is type AB because A and i are codominant.
It is type A because i is dominant and A is recessive.
It is type A because A is dominant and i is recessive.

Answer 1

The correct statement is: It is type A because A is dominant and i is recessive.

In the ABO blood group system, the allele IA represents type A, and the allele i represents type O. The IA allele is dominant over the i allele. Therefore, a person with the genotype IAi will have type A blood.