So hybridoma cells are hybrid cells between these healthy plasma cells and these cancerous plasma cells. So now, in the beaker, some of these cells are basically cancer cells that are plasma cells that produce the antibody that we want to study. And so in the next step, in step three, we want to take these hyperdoma cells and we want to screen them many times with different types of essays to basically determine and isolate those plasma cells that produce that particular type of antibody that we want to study. So we remove all those cancer plasma cells that we don't want to study, and we only keep the plasma cells that produce that monoclonal antibody that we essentially want to study. And so now that we have these cancer cells that are plasma cells that produce the monoclonal antibodies, we can place him on the medium and we can basically grow them indefinitely. And as a result, we can mass produce that antibody of choice.