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 ...

Caption The tail of bacteriophage T4 is shown before (left) and after (right) binding to a host cell. Upon attachment to the bacterium, the bacteriophage pierces the host cell envelope and injects ...