Chapter 1

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Across
  1. 2. laboratory technique used to minimize contamination
  2. 4. cells whose genetic material is not enclosed in a nuclear envelope
  3. 6. unicellular eukaryotic organisms
  4. 8. treating a disease by replacing abnormal genes
  5. 9. parasitic round or flatworm
  6. 11. microbes that colonize a host without causing disease
  7. 15. chemotherapeutic agents prepared in a lab
  8. 18. cells having DNA inside a distinct membrane enclosed nucleus
  9. 21. disease producing organisms
  10. 22. the theory that living cells arise only from preexisting cells
  11. 23. photosynthetic eukaryotes
  12. 24. domain of prokaryotic organisms have peptidoglycan cell walls
  13. 25. a eukaryote absorptive chemoheterotroph
  14. 26. chemicals produced to act against other microbes
Down
  1. 1. all living organisms are composed of cells and arise from preexisting cells
  2. 3. protection from disease
  3. 5. naming system
  4. 7. the principle that microbes cause disease
  5. 10. the use of microbes to remove an environmental pollutant
  6. 12. the idea that life could arise spontaneously from nonliving matter
  7. 13. a submicroscopic, parasitic, filterable agent consisting of a nucleic acid surrounded by a protein coat
  8. 14. domain of prokaryote cells lacking peptidoglycan
  9. 16. treatment of disease using chemicals
  10. 17. microbial community that usually forms as a slim
  11. 19. a molecule produced by combining DNA from two different sources
  12. 20. living organisms to small to be seen with the naked eye