Answer / Priyanka Verma

Radial Immunodiffusion is an immunological technique used for quantifying antigens or antibodies in a sample. In this method, a gel containing the antigen (or antibody) is placed between two agar layers of known concentration. A small well is cut into one layer and filled with a test solution containing the substance to be measured (antibody or antigen). As the substance diffuses outwards in the gel, it reacts with its counterpart, forming a precipitate at the point where both concentrations are equal. The size of the precipitin ring indicates the concentration of the substance in the test solution.

Give an example of cross-reaction?

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What is avidity?

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What is anaphylaxis?

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What is hypersensitivity?

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What is serum IgA?

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What is artificial passive immunity?

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What is the response type and activity shown by effectors molecule compliment activated by igg or igm?

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In radio immuno assay what is the used to label an antigen?

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Give the classification of IgA?

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Name the two-immuno diffusion techniques?

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Define active immunity?

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Give the classification of hypersensitivity?

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