Across
- 1. membrane around nucleus breaks down
- 3. why cell division is important for single-celled organisms
- 7. the complex material of DNA and proteins
- 9. threadlike structure made of chromatin
- 13. chromosome do this during mitosis
- 14. chromatids are pulled to opposite sides of the cell
- 15. when cytoplasm divides and two new cells are produced
Down
- 2. damaged cells are replaced by new ones
- 4. cytokinesis begins during this phase
- 5. call division happens in all ______________
- 6. genetic material in cells
- 8. the reason many people are bigger this year than last year
- 10. chromosome line up in the middle of the cell
- 11. when the cell's nucleus divides into two identical nuclei
- 12. life cycle of a cell
- 16. DNA is duplicated