1. The Cell Cycle & Mitosis
Mitosis: the process by which cells reproduce themselves, resulting in daughter cells that contain the same amount of genetic material as the parent cell.

2. Animated Mitosis Cycle
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

3. Cell Division Occurs in a series of stages of phases

4. Interphase occurs before mitosis begins most of the cell cycle is interphase
Chromosomes are copied (# doubles)
Chromosomes appear as threadlike coils (chromatin) at the start, but each chromosome and its copy(sister chromosome) change to sister chromatids at end of this phase
CELL MEMBRANE
Nucleus
Cytoplasm

5. Interphase Plant Cell Animal Cell
Photographs from:

6. Prophase 1st step in Mitosis
Mitosis begins (cell begins to divide)
Centrioles (or poles) appear and begin to move to opposite end of the cell.
Spindle fibers form between the poles.
Centrioles
Sister chromatids
Spindle fibers

7. Prophase Plant Cell Animal Cell Spindle fibers Centrioles
Photographs from:

8. Metaphase 2nd step in Mitosis
Chromatids (or pairs of chromosomes) attach to the spindle fibers.
Centrioles
Spindle fibers

9. Metaphase Plant Cell Animal Cell
Photographs from:

10. Anaphase 3rd step in Mitosis
Chromatids (or pairs of chromosomes) separate and begin to move to opposite ends of the cell.
Centrioles
Spindle fibers

11. Anaphase Plant Cell Animal Cell
Photographs from:

12. Telophase 4th step in Mitosis
Two new nuclei form.
Chromosomes appear as chromatin (threads rather than rods).
Mitosis ends.
Nuclei
Nuclei
Chromatin

13. Telophase Plant Cell Animal Cell
Photographs from:

14. Cytokinesis occurs after mitosis
Cell membrane moves inward to create two daughter cells – each with its own nucleus with identical chromosomes.

15. Animal Mitosis -- Review
Interphase                                                             
Prophase                                                             
Metaphase                                                             
Anaphase                                                             
Telophase                                                             
Cytokinesis                                                             

16. Plant Mitosis -- Review
Interphase                                                             
Prophase                                                             
Metaphase                                                             
Anaphase                                                             
Telophase                                                             
Cytokinesis                                                             

17. Cell Cycle

18. - Cell Division
The Cell Cycle 19

19. Mitosis Animation

20. What Happens if something goes WRONG during the cell cycle???
CANCER!!!