ELISA stands for:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Enzyme linked immuno-sorbent assay
(1) Enzyme linked immuno-sorbent assay — Correct. ELISA is a diagnostic test. It is based on the reaction between an antigen and its antibody. The test detects either the antigen of a germ or the antibody that the body made against it. It is widely used to diagnose AIDS.
(2) Enzyme linkage immuno-sorbent assay — Incorrect. The first word is “linked”, not “linkage”. No such expansion exists.
(3) Enzyme linked immuno-sorbent assessment — Incorrect. The last word is “assay”, which means a laboratory test. It is not “assessment”.
(4) Enzyme linkage immuno-sorbent approval — Incorrect. This is not the expansion of ELISA. The test does not give any “approval”.
NCERT Extract:
AIDS – …
