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': 'Which of the following frequently induce bends within α helices? \nSelect and explain. \nA. Threonine, B. Tyrosine, C. Glycine, D. Serine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Because it possesses such a small R group, glycine frequently induces bends within α helices.\nRef: Harper’s illustrated biochemistry. 30th edition page no: 38', 'role': 'assistant'}]