regulatory gene

or regulator gene

noun Genetics.

any gene that exercises control over the expression of another gene or genes.

Origin of regulatory gene

First recorded in 1960–65 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for regulator gene

regulator gene
[ rĕgyə-lā′tər ]


A gene that causes the production of a protein that represses the activity of another gene in an operon.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.