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True or False: Alzheimer's disease is characterized by the accumulation of beta-amyloid plaques and tau tangles in the brain.
- True
- False
Answer: True
Amyloid plaques (extracellular Aβ aggregates) and neurofibrillary tangles (hyperphosphorylated tau) disrupt neuronal function. Leading cause of dementia; research focuses on early detection and disease-modifying therapies. [[ICMR Reports, NCERT Biology Class 11]]