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 are situated away from the coding region \nSelect and explain. \nA. Promoter, B. Enhancer, C. Operator, D. All of these', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Structural genes are present in coding region. Rest all genes, like promoter gene, operator gene, regulatory gene (enhancer/repressor), are present away from coding region.', 'role': 'assistant'}]