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: 6/14/2012

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.

Get the latest health and medical information delivered direct to your inbox FREE!