What is the main reason behind organ transplantation?

Step-by-step solution

.An antibody is represented as H₂L₂, with two small peptide chains called light chains and two longer chains called heavy chains. Transplantation is done when some human organs like heart, eye, liver, kidney fail to function satisfactorily and to enable the patient to live a normal life. Before transplantation, tissue matching and blood group matching are essential to prevent rejection of the organ.The body is able to differentiate 'self' and 'nonself' and the cell-mediated immune response is responsible for the re