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
True about bacteriophage ? 
Select and explain. 
A. Is a virus, B. Causes transduction, C. Causes lysis of Bacteria, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Ans. is d i.e., All of the above Bacteriophage (phage) Bacteriophages are viruses that infect bacteria. Phages play an impoant role in the transmission of genetic information between bacteria by the process of transduction. The presence of phage genome integrated with bacterial chromosome confer bacteria ceain propeies by a process known as phage conversion. Phages have been used as cloning vectors in genetic manipulation.