The number of different alleles for ABO types in the total human population is
A) 2.
B) 3.
C) 4.
D) 6.
E) 8.

Name: The number of different alleles for ABO types in the total human population is A) 2. B) 3. C) 4. D) 6. E) 8.
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Question

Quizplus · Accepted Answer

The ABO blood group system has three alleles: A, B, and O. A and B are codominant, while O is recessive to both A and B. Therefore, there are three possible genotypes (AA, AO, BB, BO, AB, OO) and thus three different alleles in the total human population.

The Number of Different Alleles for ABO Types in the Total