<prompt> Answer this question truthfullyIn the Kozak consensus sequence gccgccRccAUGG, what type of group must be present 3 bases upstream in order for it to function correctly?  <response>: <reason> What type of group must be present 3 bases upstream in the Kozak consensus sequence gccgccRccAUGG for it to function correctly? The group that must be present is a purine. 