Question

Lactose a sugar found in milk products is broken down by enzymes. The making of these enzymes is controlled by a genetic system in E. coli. When there is no lactose present in the body, the repressor protein blocks RNA polymerase from binding to the promoter, making __________ impossible.
a)Transcription

b)Translation

c)Replication

Answer 1

I think the correct answer from the choices listed above is option A. When there is no lactose present in the body, the repressor protein blocks RNA polymerase from binding to the promoter, making transcription impossible. Hope this answers the question. Have a nice day.