Bacteria and Viruses

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Across
  1. 2. whip-like structures used for movement
  2. 4. infection a virus embeds its DNA into the DNA of a host cell and is replicated along with the host cell
  3. 5. fission doubles in size, replicated DNA then divides to produce two "daughter" cells
  4. 7. multi-cellular organism with a nucleus
  5. 8. a virus that can cause cancer
  6. 9. particles of nucleic acid, protein and lipids that can only reproduce by infecting other living cells
  7. 10. A thick-walled protective spore that forms inside a bacterial cell and resists harsh conditions.
  8. 13. rod shaped bacteria
  9. 15. An RNA virus that reproduces by transcribing its RNA into DNA and then inserting the DNA into a cellular chromosome; an important class of cancer-causing viruses.
  10. 16. spherical shaped bacteria
  11. 17. infection virus enters a cell, makes copies of itself, causes the cell to burst
Down
  1. 1. destroys bacteria by subjecting them to either great heat or a chemical action
  2. 3. disease causing agent
  3. 5. virus that infects bacteria
  4. 6. outer protein coat on a virus
  5. 11. spiral or corkscrew shaped bacteria
  6. 12. compounds that block the growth and reproduction of bacteria
  7. 14. single celled organism with no nucleus