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': 'The features of genetic coding are all, except: \nSelect and explain. \nA. Degeneracy, B. Universal, C. Overlapping of codons, D. Unambiguous', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Overlapping of codons', 'role': 'assistant'}]