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: Biochemistry
[{'content': 'Components of chromosome area) DNAb) t RNAc) m RNAd) r RNAe) Histone \nSelect and explain. \nA. ae, B. b, C. ab, D. ad', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Nucleosomes are further arranged into increasingly more complex structures that organize into chromosomes.\nChromosomes are made up of DNA, histones, and non-histone protein.', 'role': 'assistant'}]