HIV antigens
	CORRECT! The conjugate or second antibody, binds to primary antibody, in general. If one were performing a test for cytomegalovirus (CMV), the second antibody would still bind to primary antibody, but those primary antibodies would be anti-CMV antibodies.antigen.

Immunological Techniques
University of Arizona
Monday, October 6, 2008
douglas.lake@asu.edu

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