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': 'Components of 60 S subunit of ribosome are \nSelect and explain. \nA. 5.8 S, B. 23 S, C. 16 S, D. 18 S', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The mammalian ribosome has a sedimentation consisting of 80s unitIt has larger 60s subunit and another smaller 40s subunit The larger ribosomal subunit has 28s, 5.8S, and 5S rRNA And small subunit has only 18SrRNA', 'role': 'assistant'}]