| 1 | Then they combined the bacteriophages with TB bacteria. | |
| 2 | These bacteria soon burst open, spilling out enzymes and new phages. | |
| 3 | In bacteria, the gene transfer facilitated by bacteriophages is an important catalyst for evolution. | |
| 4 | In a field called combinatorial chemistry, one subfield is called "phage display". | |
| 5 | The viral DNA is injected through the tail into the host cell, where it directs the production of progeny phages. |