BACTERIA

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Across
  1. 4. spiral or corkscrew shaped bacteria
  2. 5. ancient group of bacteria
  3. 8. process by which one bacterium transfers genetic material to another through direct contact.
  4. 10. process of horizontal gene transfer by which some bacteria take up foreign genetic material (naked DNA) from the environment.
  5. 12. process by which a virus transfers genetic material from one bacterium to another
  6. 13. a disorder of structure or function in a human, animal, or plant
  7. 14. rod shaped bacteria
  8. 15. an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
Down
  1. 1. a virus that parasitizes a bacterium by infecting it and reproducing inside it.
  2. 2. structure that covers the outer layer of the cell wall in bacteria
  3. 3. bacteria normally reproduce by this simple means
  4. 6. organisms that live off other organisms, or hosts, to survive
  5. 7. single-celled organisms that are invisible to the naked eye
  6. 9. spherical or oval bacterium
  7. 11. DNA in bacteria forms a double strand in this shape