Question

ELISA technique is based on the principle of:

• A. DNA replication
• B. Antigenantibody interaction
• C. Pathogen–antigen interaction
• D. Antigen–protein interaction

Hint:

ELISA is widely used in diagnostics to detect diseases such as HIV and hepatitis by identifying antibodies or antigens.

Answer 1

The Correct Option is B

ELISA (EnzymeLinked Immunosorbent Assay) utilizes antigenantibody binding to identify specific proteins or antibodies within a sample. The presence of the target antigen is indicated by color development resulting from the reaction between an enzymelabeled antibody and its antigen.