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: Pathology
[{'content': 'Feulgen reaction is used to detect? \nSelect and explain. \nA. mRNA, B. rRNA, C. ssDNA, D. tRNA', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Feulgen reaction is semi quantitative method to identify DNA(ss DNA,ds DNA any type of DNA).The staining intensity is directly proportional to DNA concentration', 'role': 'assistant'}]