Definitions

1. adjective

Having an equal or dominant effect; in genetics, referring to a condition where two alleles have an equal effect on the phenotype of an organism.

“In genetics, the codominant traits of the parents combined to create their child’s unique physical characteristics.”

2. noun

A pair of genes or alleles that have an equal or dominant effect on the phenotype of an organism.

“The researchers studied the codominant genes responsible for the plant’s resistance to certain diseases.”