When both traits are exhibited in the phenotype, it is said that the alleles display

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Co-dominance occurs when both alleles are expressed in the phenotype, meaning neither is dominant nor recessive. This is different from incomplete dominance, where a blending of traits occurs, and complete dominance, where one allele completely masks the expression of the other. Gene silencing refers to the inactivation of a gene, which is not relevant to the scenario described.

When Both Traits Are Exhibited in the Phenotype, It Is