Which of the following assays is dependent on the ability of antibodies to bind to and crosslink two antigens?
A) immunoblot tests
B) ELISAs
C) neutralization tests
D) direct fluorescent antibody tests
E) precipitation tests

Question

Quizplus · Accepted Answer

Precipitation tests depend on the formation of a visible precipitate between soluble antigens and antibodies. This requires the ability of antibodies to bind to and crosslink two antigens. The other assays listed do not necessarily involve crosslinking of antigens. Immunoblot tests involve binding of antibodies to specific protein bands, ELISAs involve binding of antibodies to immobilized antigens, neutralization tests measure the ability of an antibody to neutralize the activity of a pathogen, and direct fluorescent antibody tests involve visualizing the binding of fluorescently labeled antibodies to a specific antigen.

Which of the Following Assays Is Dependent on the Ability