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.
The answer is c in my opinion
Binary fission cause Cloning is a hot ethical issue in the scientific community, but bacteria clone themselves all the time. In a process called binary fission, one bacterium doubles its size and genetic material, then splits to produce two identical cells.
Answer:
I think the answer is A but I also feel like it would be C but I go with A because you can see that it is two or more elements in A but not so much in C