So these three antibodies are our polyclonal antibodies. So many antigens have several epitopes. Polyclonal antibodies are a mixture of these different types of antibodies which have slightly different properties that all bind to that specific antigen. But they bind two different locations, two different epitopes on that particular antigen. Now how do we produce polyclonal antibodies? For example, if I'm a biochemist in the laboratory how can I produce these polyclonal antibodies and actually study them?