Question: A mutation in the 5′ UTR of the trp operon results in region 2 always pairing with region 3. Whic…

A mutation in the 5′ UTR of the trp operon results in region 2
always pairing with region 3. Which of the following would be the
result of this particular mutation on the trp operon when high
level of tryptophan is available in the cell?
   
A. None of the above would be possible result of this
mutation.
B. Transcription would be no longer repressible.
   C. Transcription would be immediately initiated.
D. Attenuation would no longer occur.
E. The mutation does not affect the trp operon at all.