Bacteriophage

Explanation :

• A bacteriophage is a type of virus that infects bacteria. In fact, the word "bacteriophage" literally means "bacteria eater," because bacteriophages destroy their host cells.
• All bacteriophages are composed of a nucleic acid molecule that is surrounded by a protein structure.
• New bacteriophages assemble and burst out of the bacterium in a process called lysis.
• Bacteriophages occasionally remove a portion of their host cells' bacterial DNA during the infection process and then transfer this DNA into the genome of new host cells. This process is known as transduction.