Christyn's crossword puzzle

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Across
  1. 1. replicating
  2. 4. removing or adding genes
  3. 5. raising livestock
  4. 7. introduction of DNA into nucleus
  5. 8. to tame
  6. 11. saltwater or freshwater environments
  7. 12. to make things such as medicine
  8. 13. crosses or mating
  9. 15. single set of chromosomes
Down
  1. 2. laboratory methods
  2. 3. growing a plant
  3. 6. filth,poison
  4. 9. to consume or otherwise help remove materials
  5. 10. fuel from natural renewable sources
  6. 14. production of biopharmaceuticals