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: Biochemistry
[{'content': 'Triplex DNA is clue to \nSelect and explain. \nA. Hoogsteen Pairing, B. Palindromic sequences, C. Large no. of guanosine repeats, D. PolypYrimidine tracts', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Triple- stranded DNA- forms hydrogen bonds with another surface of the double helix through called Hoogsteenpairs.', 'role': 'assistant'}]