Bio

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Across
  1. 3. discovered by Watson and Crick
  2. 6. also called a spiral staircase
  3. 10. (G)
  4. 11. (A)
  5. 12. removal of one or more nucleotides
  6. 14. nitrogenous bases with 2 rings
  7. 15. Moves along DNA molecule and breaks the hydrogen bonds between base pairs to separate chains
Down
  1. 1. Nitrogenous bases with 1 ring
  2. 2. replacement of one base by another
  3. 4. X-Rays/UV lights/radiation
  4. 5. (T)
  5. 7. are the permanent changes in the sequence of DNA
  6. 8. (C)
  7. 9. Deoxyribonucleic Acid
  8. 13. the addition of one or more nucleotides