This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Molecular Biology Techniques, Subject name: Biochemistry
[{'content': 'Which of following techniques is used for detection of variation in DNA sequence and Gene expression? \nSelect and explain. \nA. Northern blot, B. Southern blot, C. Western blot, D. Microarray', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. Microarray(Ref: Robbins 9/e page177,178)DNA microarray can be used to detect DNA sequence variationsRNA Microarray can detect Gene expression.', 'role': 'assistant'}]