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': 'Which of the following organisms is a natural transformer? \nSelect and explain. \nA. Escherichia coli, B. Neisseria gonorrhoeae, C. Plasmodium vivax, D. Pseudomonas aeruginosa', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Transformation is the uptake and integration of naked DNA by a bacteria from the environment. Transformation can be induced in the laboratory (a technique used to introduce gene-carrying plasmids into bacteria) or, relatively uncommonly, occurs naturally. Only a few medically impoant species undergo natural transformation: Haemophilus species, Streptococcus species, Neisseria gonorrhoeae, and Helicobacter pylori. Ref: Levinson W. (2012). Chapter 4. Genetics. In W. Levinson (Ed), Review of Medical Microbiology & Immunology, 12e.', 'role': 'assistant'}]