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
All are DNA viruses EXCEPT: September 2012 
Select and explain. 
A. Varicella zoster virus, B. Dengue virus, C. HBV, D. ParOvirus B19
B: Dengue virus
Answer: B: Dengue virus 
Explanation: Ans. B i.e. Dengue virus Examples of togavirus group (RNA virus) include yellow fever, sindbis & dengue viruses