Bristol 7

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Across
  1. 6. chemical that controls cell functions
  2. 7. replace cells or cell parts
  3. 9. tightly wound dna
  4. 10. chromosomes pulled to opposite sides
  5. 12. regrows missing parts
  6. 13. cells become specialized
  7. 15. cells with nuclei split
Down
  1. 1. organisms without a nucleus split
  2. 2. nucleus reforms and dna becomes thread like
  3. 3. cell grows and dna is copied
  4. 4. add more cells
  5. 5. chromosomes form nucleus disappears
  6. 8. chromosomes line up in the middle
  7. 9. the gel in cells split
  8. 11. organisms grow tiny versions on its body
  9. 14. dna comes from one organism