What degenerative disorder results from insufficient amounts of dopamine in the body?

Parkinson's disease is a neurodegenerative disorder caused by the progressive loss of dopamine-producing neurons in the substantia nigra, a critical area of the brain involved in controlling movement. Dopamine is a neurotransmitter that plays a crucial role in coordinating smooth and controlled muscle movements. When there is an insufficient amount of dopamine, the hallmark symptoms of Parkinson's disease, such as tremors, rigidity, bradykinesia (slowness of movement), and postural instability, become pronounced.

In the context of the other conditions mentioned, Huntington's disease is characterized by a genetic mutation leading to the progressive degeneration of neurons, particularly in the striatum. Alzheimer's disease is primarily associated with the accumulation of amyloid plaques and neurofibrillary tangles, resulting in cognitive decline and memory loss rather than motor symptoms. Multiple sclerosis is an autoimmune disorder that affects the central nervous system and lacks the direct link to dopamine deficiency seen in Parkinson's.

Thus, Parkinson's disease stands out as the disorder specifically linked to insufficient dopamine levels, making it the correct answer to the question.