This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
True about prion protein diseases is all, except ? 
Select and explain. 
A. Myoclonus is seen in 10% of the patients, B. Caused by infectious protein, C. Brain biopsy is diagnostic, D. Commonly manifests as dementia
A: Myoclonus is seen in 10% of the patients
Answer: A: Myoclonus is seen in 10% of the patients 
Explanation: Ans. is 'a' i.e., Myoclonus is seen in 10% of patients