Question:medium

ELISA technique is based on the principle of:

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ELISA is extensively used in medical diagnostics, such as detecting infections like HIV and hepatitis.
Updated On: Jan 13, 2026
  • DNA replication
  • Antigen-antibody interaction
  • Pathogen–antigen interaction
  • Antigen–protein interaction
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The Correct Option is B

Solution and Explanation

ELISA (Enzyme-Linked Immunosorbent Assay) identifies target antigens or antibodies by leveraging antigen-antibody binding. This interaction is visualized via an enzyme-linked reaction, commonly producing a discernible color change.
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