Clues for the word "OPERON"

We've had 4 crossword clues used for this word, and seen it 9 times in crosswords. It was last seen in Universal crossword on August 01, 2017.

Referring Clues

Last Seen In

Universal - August 01, 2017
Universal - August 11, 2016
New York Times - December 07, 2014
Family Time - November 04, 2013
Pat Sajack's Code Letter - March 29, 2013
Pat Sajack's Code Letter - February 23, 2013
USA Today - May 13, 2011
USA Today - April 04, 2011
Universal - March 26, 2010