| A | B |
|---|
| Viruses that infect bacteria are known as | bacteriophages |
| Retroviruses contain RNA and when they infect a host they must | engage in reverse transcription, where DNA is created from the RNA template |
| Viruses replicate, but | need a host to do so |
| True/False: Virues are considered to be alive | False |
| Viruses use enzymes to | weaken the walls/membranes of host cells |
| Viruses that infect a host cell, replicate, and then destroy the host engage in | the lytic cycle |
| Viruses that infect a host cel and remain dormant for a time (avoiding host cell destruciton) engage in | the lysogenic cycle |
| Viruses attach to host cells at specific | receptors |
| Viruses consist of | nucleic acids in a protein coat |
| Viruses inject and insert | nucleic acid into the host's genome |
