University Of California Santa Barbra

IA IB - resulting in Type AB blood, i i - resulting in Type O blood. In a heterozygous IA i person, which allele is dominant, IA or i? Explain your reasoning. Codominance refers to inheritance in which both alleles of a gene affect the phenotypic traits of an individual. Thus, in codominance, neither allele is recessive—both alleles are dominant. ................
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