Unit 9: Acellular Pathogens
Across
- 4. most frequently causes the "common cold"
- 7. __ viruses that co-infect host cells and help defective viruses replicate
- 10. rogue proteins that are infectious and cause fatal neurological diseases in mammals
- 12. recombination of segments of genomes between two viruses in a single host that results in a new virus
- 13. viruses with a 20-sided dice morphology
- 16. small naked RNA molecules that cause disease in plants
- 17. stage of viral cycle where virus binds to host cell membrane
- 18. periodic outbreaks occur in West Africa, causes hemorrhagic fevers and believed to come from bats
- 19. used to be a common childhood virus caused by varicella-zoster virus
- 21. point mutation leads to small changes in spike proteins of viruses
- 22. stage where viruses leave host cell
Down
- 1. derived from host cell membrane when virus leaves
- 2. causes warts in any part of the body and has over 200 strains
- 3. __viruses that lack genes to replicate in hosts and depend on other larger viruses
- 5. cycle viral life cycle characterized by long periods of viral dormancy in host cell
- 6. proteins or glycoproteins that help viruses attach to host cells
- 8. close to being eradicated worldwide, caused thousands of cases of paralysis in children in the US in the 1950s
- 9. stage of viral cycle where nucleic acids are released from the capsid
- 11. made of repeating capsomere proteins, protects viral genome
- 14. viruses that have a thread-like morphology
- 15. bacteriophages fall into this morphology group
- 20. cycle viral life cycle characterized by immediate replication of viruses in new host cell