This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Which of the following does not possess both DNA & RNA - 
Select and explain. 
A. Bacteria, B. Fungus, C. Virus, D. Spirochete
C: Virus
Answer: C: Virus 
Explanation: Viruses contain only one type of nucleic acid,either DNA or RNA,but never both REF:ANANTHANARAYANAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 8TH EDITION PAGE NO:427