Q4. Assertion: gout is a disorder of the joints. Reason: it is an inflammation of joints due to the accumulation of uric acid crystals. Are both true, and does the reason explain the assertion?
Both are true, and the reason explains the assertion (NCERT page 227).
Q5. Which of NCERT’s six disorders involves progressive genetic degeneration of muscle?
Muscular dystrophy (NCERT page 227 says “mostly”; modern muscular-dystrophy classification is genetic).
Q6. Name the disorders on NCERT’s list that affect the joints.
Arthritis, the inflammation of joints, and gout, joint inflammation from uric acid crystals (NCERT page 227).