A positive direct ELISA result requires

A. one known antibody, one unknown antibody, and an unknown antigen.
B. two known antibodies and one unknown antigen.
C. two known antibodies and one known antigen.
D. one known antibody, one unknown antibody, and a known antigen.


Answer: B

Biology & Microbiology

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Fill in the blank(s) with the appropriate word(s).

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Which of the following correctly lists organization levels from the simplest to the most complex?

a. atoms, organelles, cells, tissues, organs b. atoms, molecules, tissues, organelles, organisms c. molecules, atoms, cells, organelles, tissues d. molecules, cells, organelles, organisms, organs

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The net direction that an ion or molecule

moves is

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What is the cytoskeleton

What will be an ideal response?

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