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': 'In translation process , proof reading of tRNA is done by: \nSelect and explain. \nA. RNA polymerase, B. Amino - acyl-t - RNA synthetase, C. Leucine zipper, D. DNA', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Amino acyl t-RNA synthetase', 'role': 'assistant'}]