posted by Marrion on .
A person has the blood group AB, what determines this blood group?
a) different alleles on different chromosomes
b) different alleles on the same chromosomes
c) the same alleles on different chromosomes
d) the same allele on the same chromosomes
I thought that the answer should be B, but the correct answer is A. Why is it B and not A??
You can read about blood groups here:
Chromosomes typically come in pairs. Would the other chromosome in the pair be considered the same (because of its designation) or different?