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A section of DNA that contains the genetic code for a single polypeptide and functions as a hereditary unit.

[From cis-trans test, a genetic test (cis- + trans-) + -on.]

cis·tron′ic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biology) cistron-related
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Simmons L.C et al expressed a F(ab')2 fragment by a separate cistronic system.
Polycistronic expression cassette is simpler to construct and expression can be controlled better than the separate cistronic systems because genes in polycistronic expression cassette are under the control of one promoter instead of multiple promoters in separate cistronic vectors.
Each chromosome was designated by a series of scalars, termed Cistronic Stop Ratio Series (CSRS), representing the ratio of distributions of stop sequences in each on the 3 reading frames of all cistrons in a genome.