These codons known as start codons and stop codons. And these are used to essentially initiate and terminate the process of translation. So let's briefly discuss how this takes place in prokaryotes and eukaryotes. 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.