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: Forensic Medicine
[{'content': 'Restriction endonuclease is: Maharashtra 08 \nSelect and explain. \nA. Break single stranded DNA, B. Break double stranded DNA, C. Break peptide chain, D. Break RNA', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Break double stranded DNA', 'role': 'assistant'}]