2. [2 points] This problem concerns the dsDNA gene sequence from E . coli shown below. Site 1 is the transcriptional start site. Site 2 is a consensus sequence that when present in the corresponding RNA transcript is called the Shine-Dalgarno sequence. Site 3 is the translational start site, when present in the corresponding RNA transcript. Explain the role of this sequence in transcripts in prokaryotes and explain where one would find the anti-Shine-Dalgarno sequence..