Question

ELISA allows the detection and measurement of antigens or antibodies in biological samples through which type of molecular interaction?

Options

• Protein precipitation

• Antigen-antibody reaction

• Enzyme catalysis

• DNA replication

Answer 1

ELISA detects and measures antigens or antibodies through the antigen-antibody reaction, which is a specific and reversible molecular interaction. Antibodies bind to their corresponding antigens with high specificity and affinity, forming the basis for the immunological detection and quantification in ELISA assays.