Which of the following statements are correct regarding auto-immunity and immune system disorders? A. Auto-immunity occurs when the body attacks its own cells due to genetic and other unknown reasons. B. Rheumatoid arthritis is an example of an auto-immune disease. C. Myasthenia gravis is an auto-immune disorder affecting the neuromuscular junction. D. An allergy is a type of auto-immune response directed against har

Step-by-step solution

Statement A is correct. Auto-immunity is a condition where the immune system loses the ability to distinguish self from non-self and attacks its own body cells. This is often due to genetic and other unknown reasons. Statement B is correct. Rheumatoid arthritis is a classic example of an auto-immune disease where the immune system attacks the joints. Statement C is correct. Myasthenia gravis is an auto-immune disorder that affects the neuromuscular junction, leading to fatigue, weakening, and paralysis of skeletal