| 11. | Operons are also found in viruses such as bacteriophages.
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| 12. | It is a transcription factor, inducing the transcription of the vir operons.
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| 13. | RNA polymerase can then begin to transcribe operon genes.
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| 14. | This allows the process of translation to directly affect transcription of the operon.
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| 15. | Spot 42 RNA mediates discoordinate expression of the E . coli galactose operon.
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| 16. | At least 6 amino acid operons are known to be regulated by attenuation.
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| 17. | Nitrogen starvation upregulates the curdlan operon and increases the rate of curdlan synthesis.
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| 18. | This process can also refer to the positive control of the lac operon.
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| 19. | Arsenic chaperone, ArsD, encoded by the arsRDABC operon of Escherichia coli.
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| 20. | LexA binds to the promoter of the UmuDC operon and inhibits gene transcription.
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