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Biology 16 Online
OpenStudy (anonymous):

http://takeexam.next.ecollege.com/ec/courses/46122/CRS-SCI203B-3950288/ScreenShot053.jpg http://takeexam.next.ecollege.com/ec/courses/46122/CRS-SCI203B-3950288/ScreenShot054.jpg 3. In order for transcription of the lac operon genes to take place, what must happen? A. The repressor protein binds to the DNA molecule, and RNA polymerase falls off. B. The repressor protein falls off the DNA molecule, and RNA polymerase binds to the promoter. C. Lactose is removed from the system. D. The repressor protein binds to the promoter sequence.

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