Which of the following statements is true about hapten-
1. Haptens are small organic molecules that are antigenic but not immunogenic.They are not immunogenic because they cannot activate helper T cells. Failure of hapten to activate helper T cells is due to their inability to bind to MHC proteins; they cannot bind because they are not proteins and only proteins can be presented by MHC proteins. Moreover, haptens are univalent hence cannot activate B cells by themselves. 2. In general, only large molecules, infectious agents, or insoluble foreign matter can elicit an immune response in the body.
It induces brisk immune response
It needs carrier to induce immune response
It is a T-independent Antigen
It has no association with MHC
Immunology