This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemistry of Nucleotides , Subject name: Biochemistry
[{'content': 'Which base is not found in DNA: \nSelect and explain. \nA. Adenine, B. Guanine, C. Cytosine, D. Uracil', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. UracilBoth DNA and RNA contain same type of purines namely Adenine (A) and Guanine (G). The pyrimidine, in DNA are Thymine (T) and Cytosine(C). The pyrimidines in RNA are Uracil (U) and Cytosine(C).', 'role': 'assistant'}]