Ans. (C). Controlled after transcription.
Gene expression is a process that involves synthesis of a final gene product by using information present in a gene. It is regulated at various level to decrease or increase the production of these gene products, known as gene expression control.
Transcription includes formation of RNA molecule from a template DNA strand. Therefore, it gene expression is controlled after the formation of RNA, it is known as controlled after transcription.
Thus, the correct answer to be filled in the blank is option (C).
Question 1: Controlled after transcription...
Question 2: I believe it's the DNA region is not easily accessible...
Question 3: Exons...
Question 4: I believe it's conservation of energy and resources...
Question 5: Turning off gene expression...
Hope this helps with what you're looking for...
I got you! good luck!
C. It is controlled after transcription
Now it could also be translation (because that is after the protein is made) - but because your question asks specifically after the RNA is formed (that process is called transcription) that would indicate that your answer is C.