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