Codominance: Both alleles are fully expressed in the heterozygous phenotype.
How to apply it: Use codominance to explain ABO blood type where both A and B antigens appear.
Course: AP Biology · Unit: Heredity
Practice questions about Codominance on AimFive — get rubric-based feedback showing exactly which points you earned.
AP and Advanced Placement are trademarks of College Board. AimFive is not affiliated with or endorsed by College Board.