Which of the following are Autoimmune disorders? A. Myasthenia gravis B. Rheumatoid arthritis C. Gout D. Muscular dystrophy E. Systemic Lupus Erythematosus (SLE) Choose the most appropriate answer from the options given below
Answer: (A) A, B and E only. Answer: (A) A, B and E only Solution: Autoimmune disorders arise when the body attacks its own self-cells.
- A.A, B and E only✓
- B.B, C and E only
- C.C, D and E only
- D.A, B and D only
Correct Answer
(A) A, B and E only
Solution & Explanation
Answer: (A) A, B and E only Solution: Autoimmune disorders arise when the body attacks its own self-cells. Myasthenia gravis (A), Rheumatoid arthritis (B) — NCERT's named example — and Systemic Lupus Erythematosus/SLE (E) are all autoimmune. Why others are wrong: Gout (C) is a metabolic uric-acid disorder and Muscular dystrophy (D) is a genetic muscle-degeneration disorder; neither is autoimmune, so any option including C or D is incorrect. NCERT Reference: NCERT Ch7, p.137, lines 31-34: "Rheumatoid arthritis which affects many people in our society is an auto-immune disease"