Rocket Immunodiffusion is also known as double-diffusion gel diffusion none of these electroimmunodiffusion TRUE ANSWER : ? YOUR ANSWER : ?
What is the ELISA test intended to measure? Antigen to HIV only Presence of free, circulating virus in the patient Antibody to HIV only Antibodies directed against HLA molecules TRUE ANSWER : ? YOUR ANSWER : ?
An antigen preparation and an antibody preparation are tested by immunodiffusion. Three bands are found, indicating that the antibody was impure there was one antibody and one antigen the temperature was too high there was more than one antigen TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is an immunoelectrophoresis technique? Coimmunoelectrophoresis Both (a) and (b) Two-dimensional immunoelectrophoresis Counterimmunoelectrophoresis TRUE ANSWER : ? YOUR ANSWER : ?
What would happen if serum is omitted from the ELISA, but all other steps remain same? Both (a) and (b) The OD values would be nearly the same as the assay control Anti-human Ig-conjugate would not bind and be washed away Anti-human Ig-conjugate would bind non-specifically to the ELISA plate TRUE ANSWER : ? YOUR ANSWER : ?
The competitive immunoassay can be used commonly to detect trace amounts of drugs. to detect very small amounts of antigen to detect antibody associated with allergies (IgE) both (a) and (b) TRUE ANSWER : ? YOUR ANSWER : ?
Different form of a plasmid, on an agarose gel, after electrophoresis may be in which of the following sequence in decreasing molecular weight? Linear plasmid, open circular, super coiled plasmid Open circular, super coiled, linear plasmid DNA Open circular, linear plasmid, super coiled plasmid Open circular, super coiled, linear plasmid DNA TRUE ANSWER : ? YOUR ANSWER : ?
What radioactive molecule is used to end-label an oligonucleotide? (gamma)-32P-ATP (alpha)-32P-dUTP (alpha)-32P-ATP Any of these TRUE ANSWER : ? YOUR ANSWER : ?
In Counter immunoelectrophoresis electrophoresis will drive the antibody and antigen parallel to each other the antibody will migrate towards cathode electrophoresis will drive the antibody and antigen toward each other the antibody will migrate towards anode TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is a positively charged matrix for ion exchange chromatography? None of these CM cellulose Phosphocellulose DEAE cellulose TRUE ANSWER : ? YOUR ANSWER : ?