This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
Werner syndrome is 
Select and explain. 
A. MEN-I, B. MEN-II, C. Premature ageing, D. Defective sirutins
C: Premature ageing
Answer: C: Premature ageing 
Explanation: Patients with Werner syndrome show premature ageing due to the defect in DNA helicase enzyme, a protein involved in DNA replication and repair and other functions requiring DNA unwinding.Wermer syndrome is MEN-1 (note the spelling)Robbins 9th edition 66