Medical Definition of Ortholog

Ortholog: A gene in two or more species that has evolved from a common ancestor. Also called an orthologous gene.

Last Editorial Review: 6/9/2016

Search MedTerms:

Back to MedTerms online medical dictionary A-Z List
Pill Identifier Tool

Need help identifying pills and medications?
Use the pill finder tool on RxList.

Health Solutions From Our Sponsors