clonal selection

What happens when a group of streptococci stick to cells in your throat and start to make toxins? Your body fights back by making clones. The animated video, Fighting Infection by Clonal Selection, from Etsuko Uno and Drew Berry is so good that if I didn't know better, I would almost think it's really capturing clonal selection on film. What is clonal selection? We call this process "clonal selection" because only some lucky cells get selected for cloning. These cells have proteins on their surface that are able bind to bits of stuff from bacteria or viruses. We call that stuff "antigens…