This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of nucleic acids, Subject name: Biochemistry
[{'content': 'Synthesis of rRNA place in \nSelect and explain. \nA. Cytosol, B. Nucleus, C. Nucleolos, D. Mitochondria', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Molecules of rRNA are synthesized in a specialized region of the cell nucleus called the nucleolus, which appears as a dense area within the nucleus and contains the genes that encode rRNA. Ref-D.M.Vasudevan 7/e p572', 'role': 'assistant'}]