Precipitation Tests Involve All of the Following, Except

question 35

Multiple Choice

Precipitation tests involve all of the following, except

• A)they rely on formation of visible clumps for detection.
• B)they include the VDRL test for syphilis.
• C)they are often performed in agar gels.
• D)they can be done in a test tube by carefully adding antiserum over antigen solution.
• E)a cloudy or opaque zone developing where antigen and antibody react.

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