Question

Assertion (A): In ELISA, a pathogen can be detected by the presence of antigens like proteins, glycoproteins or by detecting antibodies synthesised against the pathogens in the blood stream.

Reason (R): ELISA test is a technique based on antigen-antibody interactions.

Options

• Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

• Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

• Assertion (A) is true but reason (R) is false.

• Both assertion (A) and reason (R) are false.

Answer 1

Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

Explanation:

ELISA can detect pathogen antigens or antibodies made against a pathogen in the blood. This detection works through specific antigen–antibody interactions.