Match List - I with List - II.
| List – I | List – II |
|---|---|
| (A) Rheumatoid arthritis | (I) Primary lymphoid organ |
| (B) AIDS | (II) Antibody mediated immune response |
| (C) Thymus | (III) Immuno deficiency disease |
| (D) B-Lymphocytes | (IV) Auto-immune disease |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
(A) Rheumatoid arthritis — this matches (IV) Auto-immune disease. The body attacks its own cells.
(B) AIDS — this matches (III) Immuno deficiency disease. HIV destroys helper T-lymphocytes.
(C) Thymus — this matches (I) Primary lymphoid organ. T-lymphocytes mature here.
(D) B-Lymphocytes — this matches (II) Antibody mediated immune response. B-cells make antibodies (humoral response).