Hapten is -: (A) Same as epitope, (B) Small molecular weight protein, (C) Requires carrier for specific antibody production, (D) Simple haptens are precipitate
Answer is C. Haptens are small molecules that elicit an immune response only when attached to a large carrier such as a protein Reff: Ananthanarayan & Panikers textbook of microbiology 9th edition pg:87