Precipitation reactions depend on
A)the antigen having one epitope.
B)the antibody having one epitope.
C)the antigen having two or more epitopes.
D)the antigen having no epitopes.

Question

Quizplus · Accepted Answer

Precipitation reactions occur when antigens have two or more epitopes that can bind to antibodies and form insoluble complexes, which precipitate out of solution. If the antigen has only one epitope, it cannot form these complexes and therefore cannot cause a precipitation reaction. The presence or absence of epitopes on the antibody itself is not relevant to the formation of precipitation reactions.

Precipitation Reactions Depend on