Which of the following is true about prokaryotic gene regulation?

Which of the following is true about prokaryotic gene regulation?



A) A regulator gene codes for a repressor protein that controls the operon.

B) An operator is the sequence of DNA where the RNA polymerase attaches.

C) Promoters code for enzymes and are transcribed as a unit.

D) Structural genes are located outside the operon and code for enzymes.



Answer: A) A regulator gene codes for a repressor protein that controls the operon.


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