Zoology - Human Health and Diseases Question with Solution | TestHub

In artificially acquired passive immunity preformed antibody in an immune serum is introduced into the body by infection. As the antivenum used to treat snake bites. In this case, the body does not produce any antibodies. Antibody is a protein molecule having two light chain and two heavy chain. B-cells recognize and bind antigens and may differentiate to memory cell or plasma cells (produce antibody). T-cells causes transplant rejection.