What is it called when a person possesses two different alleles at the same locus, and both alleles are expressed in the phenotype?
A) recessiveness
B) codominance
C) dominance
D) homozygosity
E) X-linkage

Question

Quizplus · Accepted Answer

This is a classic definition of codominance, where both alleles at a locus are expressed in the phenotype of the organism. In contrast, recessiveness refers to a situation where one allele is not expressed in the phenotype when paired with a dominant allele. Dominance refers to the masking of one allele by the other, while homozygosity refers to having two identical alleles at a locus. X-linkage refers to genes located on the X chromosome.

What Is It Called When a Person Possesses Two Different