But this last cell that did not take up the plasmid, it will not have resistance to drugs. And so if we expose this last cell to antibiotics, it will die off. In fact, that's exactly what we do in the next step in step four. So in the next step, what we want to basically do is we want to be able to distinguish between those bacterial cells that did take up those plasma and the ones that did not. And so what we do is we take all these plasmids and we take them and place them onto a special petri dish that contains not only a nutritious fluid but also antibiotic medium. And so what that means is once we place all these cells onto this antibiotic containing medium, those cells that took up these plasmids will have that blue gene that gives it resistance to those drugs and so they will not die off.