Which disease is fatal brain disorder caused by the prion protein?

Correct option is C

Ans. (c)
Sol. Creutzfeldt–Jakob Disease (CJD) is a prion disease where misfolded proteins cause brain degeneration and death.
Explanation of each option:
· (a) Pick’s Disease – Frontotemporal dementia, not prion-based.
· (b) Mad Cow Disease – Bovine spongiform encephalopathy, prion-based but affects cattle.
· (c) Creutzfeldt–Jakob Disease – Correct answer. Prion disorder affecting humans.
· (d) Lewy Body Disease – Related to Parkinson’s, involves alpha-synuclein, not prions.