Immunological Techniques
What is the ELISA test intended to measure?

Antibodies directed against HLA molecules
Antibody to HIV only
Antigen to HIV only
Presence of free, circulating virus in the patient

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Immunological Techniques
In Rocket Immunodiffusion the length of the rocket is

inversely proportional to the amount of antigen placed in each well
proportional to the amount of antibody placed in each well
proportional to the amount of antigen placed in each well
inversely proportional to the amount of antibody placed in each well

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Immunological Techniques
In Counter immunoelectrophoresis

the antibody will migrate towards anode
electrophoresis will drive the antibody and antigen parallel to each other
electrophoresis will drive the antibody and antigen toward each other
the antibody will migrate towards cathode

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