Question

ch 15 quiz
6
a positive indirect elisa result requires ______.
multiple choice

• a known antigen, an unknown antibody, and a known antibody
• one known antibody, one unknown antibody, and an unknown antigen
• two known antibodies and one known antigen
• two known antibodies and one unknown antigen
• all of the choices are correct.

Explanation:

In indirect ELISA, the process involves coating the plate with a known antigen. The sample (containing unknown antibody) is added, then a known secondary antibody (to detect the unknown primary antibody) is used. So the correct components are a known antigen, an unknown antibody, and a known antibody.

Answer:

A. a known antigen, an unknown antibody, and a known antibody