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: Microbiology
[{'content': 'Bacteria are simple genetic units with all of the following properties, EXCEPT: \nSelect and explain. \nA. They are diploid, B. Their genetic material is organized into a single chromosome, C. Their DNA has intervening sequences (introns) in almost all genes, D. They use same genetic code as all the eukaryotes', 'role': 'user'}, {'content': "Answer: C \nExplanation: Prokaryotes can't have introns, because they have transcription coupled to translation.\xa0\nThey don't have time/space for that, since intron splicing will stop the coupling. Eukaryotes evolved the nucleus, where splicing can be done.\nThe parts of the gene sequence that are expressed in the protein are called exons, because they are expressed, while the parts of the gene sequence that are not expressed in the protein are called introns, because they come in between the exons.", 'role': 'assistant'}]