Question 10 • CV Q4 M/J Science 3 Adv 2002110 Compacted Review of Grade.7.Life for SSA Prep
The ABO blood group system has three alleles: A (Iᴬ), B (Iᴮ), and O (i). Different combinations of these alleles produce the four main blood types: A, B, AB, and O. Therefore, the correct choice is C, three.
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