Immunological Techniques
What is the ELISA test intended to measure?

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

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Immunological Techniques
Different form of a plasmid, on an agarose gel, after electrophoresis may be in which of the following sequence in decreasing molecular weight?

Open circular, super coiled, linear plasmid DNA
Open circular, linear plasmid, super coiled plasmid
Linear plasmid, open circular, super coiled plasmid
Open circular, super coiled, linear plasmid DNA

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