December 3, 2016

Homework Help: biology!

Posted by Marrion on Friday, October 16, 2009 at 9:04pm.

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??

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