Since the ABO blood group alleles are codominant, an individual with the genotype I^A I^B will have blood type 06:10 Biology Chapter 12 Since the ABO blood group alleles are codominant, an individual with the genotype I^A I^B will have blood type a. Ab. B c. AB d. OAnswer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+