So in prokaryotic cells, such as bacterial cells, we have this specific sequence of nucleotides, Aug and less commonly CUG that essentially code for the beginning of that process. So Aug and C UG are the start codons. Now, in prokaryotic cells, in bacterial cells, this is not enough to actually initiate the process of translation. What has to happen is we have to have this specific sequence of nucleotides that is rich in puree nucleotides known as the Shine Delgarno sequence that has to be found about ten nucleotides upstream to the left of the first Aug sequence. So as shown on the following diagram. So let's imagine this is the mRNA molecule inside that particular bacterial cell.