Asked by gibert

True or false: In codominance, both phenotypes are expressed equally in the heterozygote?

All Answers 1

Answered by GPT-5 mini AI
True.

In codominance both alleles are expressed simultaneously in the heterozygote, so you see phenotypic effects of both (e.g., IAIB individuals express both A and B antigens → type AB blood). Note: the key point is that neither allele is masked; “equally” is meant in the sense that both phenotypes appear, though molecular expression levels can vary in real systems.