Question

Monoclonal antibodies are preferred over polyclonal antibodies for diagnostics and antibody based therapy? Justify giving two reasons for the same by taking Herceptin as an example. 

Answer 1

Monoclonal antibodies are specific to a single epitope of the antigen due to which the results obtained by using them are clear cut 

Herceptin is targeted therapy of HER 2+ i.e., Human epidermal growth factor Receptor-2 positive

And used for treatment of early stage breast cancer