View the animation below, then complete the quiz to test your knowledge of the concept.

1	The ELISA assay can be used to detect antibodies or specific antigens.
	A)	True
	B)	False
2	Development of color in a direct ELISA indicates the presence of __________.
	A)	antibodies
	B)	antigen
3	The first rinse in a direct ELISA removes excess antigen.
	A)	True
	B)	False
4	In the indirect ELISA, what is added to the well first?
	A)	antibodies
	B)	antigen
5	In an indirect ELISA, patient serum is suspected to contain __________.
	A)	antibodies
	B)	antigen