Across
- 3. many bacteria have a long whip like structures called ***
- 6. a mixture containing material from one or more deactivated pathogens such as viruses
- 7. most people who get a virus develop an **** to the disease
- 9. enable viruses to adjust to changes in host cells
- 10. two bacteria of the same species attach to each other and combine their genetic material
Down
- 1. viruses can make copies of itself in a process called ****
- 2. microscopic prokaryotes
- 4. a protein that can attach to a pathogen and make it useless
- 5. cell division that forms two genetically identical cells
- 8. a strand of DNA or RNA surrounded by a layer of protein that can infect and replicate in a host cell