GNM-SY-MSN-1-REPEATER-PAPER SOLUTION-09/06/2025 Q-1 a) Define Parkinson’s disease. Parkinson’s disease is a disease in which the level of dopamine decreases, due to which there is obstruction of nerve impulse transmission and this is a neurodegenerative disorder. Parkinson’s disease is a chronic, progressive, neurological disorder in which muscle control, movement and balance are disturbed. Parkinson’s disease is a slow, progressive neurological movement disorder that also results in disability. Parkinson’s disease is a