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Use "operons" in a sentence
"Ochman 2007a Origins of flagellar gene operons and secondary flagellar systems."
"Not only do IS elements make a direct contribution to fitness by activating cryptic operons, they do so in a regulated manner, transposing at a higher rate in starving cells than in growing cells."
"Getting rid of the checkpoint protein releases the subboss protein to bind to the control regions of class 3 operons, switching on the genes for the outer portion of the flagellum."