1. The Cell Cycle

2. One cell becoming two

3. Chromatin vs. Chromosomes appearance within the cell.

4. DNA coiling up using histones

5. Chromosome Duplication The DNA is replicated during the S phase

6. Interphase

7. Interphase cell (Look at the chromatin in the nucleus.)

8. Starting Mitosis

9. Cell in Prophase

10. Second half of Mitosis Can you “see” the phases in the name?

11. Cell in Metaphase

12. Cell in Anaphase

13. Cell in Telophase

14. Spindle Apparatus and Motor protein “walking” the chromosomes

15. Can you find the different phases in this onion root tip?

16. Animal vs. Plant cytokinesis

17. Binary Fission in Bacteria

18. Checkpoints (Is all going according to plan?)

19. Density-dependent inhibition Notice how the mass begins to grow because cancerous cells ignore density

20. Benign Tumor

21. Malignant cancer cells from the breast (See the ABNORMAL “crab” shape of the cells.)