Viruses

3. Fusion of multiple host cells
5. External covering of a nucleocapsid
8. Protein shell that surrounds the nucleic acid of a virus
10. virus-induced damage to the cell that alters its appearance
11. synthesizes DNA from RNA
12. Infectious agent that replicates only inside the living cells of an organism
14. viral infection reactivates after a period of hibernation
15. Specificity of a virus for certain tissues
16. Viral titers peak and drop quickly in an infection
18. Infectious protein induces mis-folding of host protein
19. Subunits of a capsid stacked around a central axis to form a spring-shaped structure
20. fusion, Viral envelope merges directly with the cell membrane
23. incorporation of the bacteriophage genome into the host cell genome
24. Budding of enveloped viruses from host

1. potential to cause cancer
2. Composition of viral spikes
4. A __________ has a complex capsid structure
6. When a virus is engulfed in a vesicle by a host cell
7. Capsid protein subunits arranged in a regular geometrical pattern, similar to a soccer ball
9. Allow viruses to dock with host cells
13. Envelope and capsid are dissolved and genetic material is released
17. Intracellular parasites that can't multiply unless they invade a specific host cell
21. bodies, compacted masses of viruses in host cell
22. Viral titers remain steady over a long period of time