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 is a strategy used to increase the yield of protein produced in recombinant protein synthesis ? \nSelect and explain. \nA. Promoter induction, B. Genes for protease inhibitors, C. Translation initiation, D. Translation and transcription termination', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Expression vector is a vector which synthesize the protein coded by a gene introduced via DNA recombination technology. To enhance the final yield of protein product, some expression vectors even contain genes that code for protease inhibitors.', 'role': 'assistant'}]