Chapter 5 - Viruses

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Across
  1. 4. Areas of a culture plate where virus infected cells have been destroyed showing up as clear, well-defined patches in the cell sheet
  2. 5. Third general stage of the animal viral replication cycle where viral genetic material starts replicating in the host cell
  3. 9. Virus-like agents that only affect plants, composed of naked stands of RNA without any type of coating
  4. 10. Viruses are ___, meaning they cannot multiply unless they invade a specific host cell and take over its genetic & metabolic machinery to make and release new viruses
  5. 14. Fifth general stage of the animal viral replication cycle where the newly assembled virions leave the host cell to infect other cells
  6. 15. First general stage of the animal viral replication cycle where virus binds to specific receptor sites on the cell membrane
Down
  1. 1. Second general stage of the animal viral replication cycle where the virus/its nucleic acid enters the cell's cytoplasm and releases its genetic material
  2. 2. Newly discovered virus-like entity made of twisted links of RNA that live in many humans' gut & mouth
  3. 3. A fully formed virus that has the ability to establish infection in a host cell
  4. 6. The effect of oncogenic viruses on host cells where the cell changes into cancer
  5. 7. The virus linked to Burkitt's lymphoma
  6. 8. Fourth general stage of the animal viral replication cycle where mature virus particles come together to create new and complete virions
  7. 11. Estimated percentage of cancers that are caused by viruses
  8. 12. The first discovery of viruses occurred in the tobacco plant where this viral disease was found
  9. 13. Viral nucleic acid can be one or the other of these, but not a combination of both