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': 'The segment of DNA between chromosomal and extrachromosom al DNA molecules within the cells are - \nSelect and explain. \nA. Transposons, B. Cosmid, C. Plasmid, D. Episomes', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Transposons", 'role': 'assistant'}]