Answer:C
Explanation:BECAUSE I SAID SO
The lac repressor prevents the lac genes in the DNA of E. coli from being expressed most of the time. The answer to your question is A. I hope this is the answer that you are looking for and it comes to your help.
Answer:
The nucleus contains a cell's DNA.
Answer: did you try using goog
Explanation:
And instead of use the arrow use a equal sign