Definition, Meaning & Synonyms

homologue

Noun

/ˈhɒməˌlɒg/

Definition

A homologue is a term used in biology and genetics to refer to a gene or a chromosome that is similar in structure and sequence to another, due to shared ancestry.

Examples

The genes of fruit flies and humans can be considered homologues due to their similar functions.
In evolutionary biology, homologues are often used to trace the lineage of species.

Meaning

The concept of homologue is important in understanding the relationships between different species and the evolutionary process, as homologous structures often reflect common evolutionary origins.