So the first step is to allow that eukaryotic cell to transcribe this DNA molecule into the single stranded pre mRNA molecule. And pre simply means it has not yet been processed by that eukaryotic cell. Now, instead of taking out the premrina molecule, let's keep the prem RNA molecule inside that eukaryotic cell. And what that means is this eukaryotic cell will use the premrina molecule and because it is a eukaryotic cell, it has the proper machinery to remove these intros and basically combine these exons. So we basically take the premna, we remove these orange sections, we modify the mRNA in other ways. For example, we add a polyatail and then we finalize and we form that fully processed mRNA molecule that only consists of these exon sections and not of these intron sections.