regulator gene

regulatory gene

noun Genetics.
any gene that exercises control over the expression of another gene or genes.
Also, regulator gene.

1960–65 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

regulator gene (rěg'yə-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.
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