[Campbell Biology P.329] What are the three possible alleles for the ABO blood groups in hum... | Practice Question

What are the three possible alleles for the ABO blood groups in humans?

  • A: A, B, O
  • B: IA, IB, i
  • C: AA, BB, ii
  • D: M, N, O

Explanation

The text explicitly states: 'The ABO blood groups in humans, for instance, are determined by the two alleles a person has of the blood group gene; the three possible alleles are IA, IB, and i.'