Chapter 20 - Viruses and Prokaryotes

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Across
  1. 4. the scientist that did the swan neck flask experiment
  2. 6. when one organism benefits and the other is unharmed or indirectly benefits
  3. 10. bacteria that require oxygen to grow
  4. 12. a flu spike protein that aids in attacking plasma membranes
  5. 14. infectious proteins
  6. 17. a virus that infects bacteria
  7. 18. contains the nucleic acid of a virus
  8. 19. spherical bacteria
  9. 21. HIV is an example of this type of virus
  10. 25. requires high salt concentration for growth
  11. 26. provides support and shape to cells
  12. 27. parasites that cannot reproduce outside of a living cell
  13. 28. genetic recombination that requires a pilus
  14. 29. bacteria that appear red after staining
Down
  1. 1. an outer layer of polysaccharide that is gel-like
  2. 2. needed to turn viral RNA into cDNA
  3. 3. the fourth stage of viral reproduction
  4. 4. when one organisms benefits and the other is harmed
  5. 5. needs to occur before a virus can enter into a host cell
  6. 7. form lichen (in association with fungi)
  7. 8. naked RNA that can cause crop diseases
  8. 9. rod-shaped bacteria
  9. 11. the bacterial ability to take up DNA from dead bacteria
  10. 13. a reproduction cycle that results in viral DNA incorporating into the host cell DNA
  11. 15. extensions that allow for adhesion of prokaryotes to other surfaces
  12. 16. one example of a compound that targets cell wall synthesis
  13. 20. forms the structure of bacterial cell walls
  14. 22. the transfer of DNA in bacteria using viruses
  15. 23. bacteria that appear dark purple after staining
  16. 24. outer layer of protective protein