DNA crossword puzzle

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Across
  1. 3. helps your genes somehow
  2. 4. G=C, what else
  3. 6. one
  4. 11. from your mom and dad
  5. 12. 5'-3'
  6. 13. creating two
  7. 14. friends with DNA ligase
  8. 16. has 3 parts
  9. 17. does something to bacteria
Down
  1. 1. "prongs"
  2. 2. double helix shape
  3. 5. opposite of parallel
  4. 7. different types
  5. 8. an enzyme
  6. 9. a chemical factor
  7. 10. you can pass it down
  8. 15. macromolecule