This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Techniques in molecular biology, Subject name: Biochemistry
[{'content': 'DNA foot printing is used to detect \nSelect and explain. \nA. Single nucleotide polymorphisms, B. Variable number of tandem repeats, C. Parent of origin of the child, D. DNA-protein interaction', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Techniques of detection of DNA-Protein interaction : DNA footprinting Yeast one-hybrid system Electrophoretic mobility shift assay (EMSA)', 'role': 'assistant'}]