Definition, Meaning & Synonyms

complete-dominance

Noun

/kəmˈpliːt ˈdɒmɪnəns/

Definition

Complete dominance refers to a genetic scenario where one allele completely masks the effect of another allele for the same gene.

Examples

In pea plants, the allele for tall stems shows complete dominance over the allele for short stems.
When a person has complete dominance for a trait, the dominant trait will be fully expressed regardless of the other allele present.

Meaning

In biology, particularly in genetics, complete dominance indicates that the phenotype associated with one allele is fully expressed in the presence of another allele that may have no effect.