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SIZIF [17.4K]
4 years ago
7

The abo blood type system in humans is a system that contains ________ alleles that produce __________ different phenotypes.

Health
1 answer:
a_sh-v [17]4 years ago
8 0
There are three different alleles A, B, O 
<span>These produce four different phenotypes A, B, AB, O

</span>
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