1. Mitosis

2. The Cell Cycle Defined: Repeating set of events in the life of a cell
1) Interphase
G1, S, G2
2) Prophase
3) Metaphase
4) Anaphase
5) Telophase
Remember: The cell won’t continue on to the next stage unless the cell is large enough and everything has been copied properly.

3. What is Mitosis?
Mitosis: Cell division involving somatic (non-sex) cells
Involves only diploid cells
Form of asexual reproduction for some life (bacteria & protista, fungi)
End Result: Two genetically identical “daughter cells”

4. Interphase Divided into 3 Stages: G1 Stage S Stage G2 Stage
Normal function performed
Cell growth
Organelles duplicated/created
S Stage
Chromatin (DNA strands) duplicated
G2 Stage

5. Prophase 1st Mitosis Stage
Chromatin (DNA strands) coils into chromosomes
Nucleus dissolves spilling the chromosomes
Spindle fibers form

6. Metaphase 2nd stage of mitosis
Spindle fibers attach to centromeres of each chromosome
Spindle fibers pull the chromosomes to the cell’s equator

7. Anaphase 3rd stage of mitosis Spindle fibers rip apart the chromosomes
1 chromatid pulled to each direction

8. Telophase 4th stage of mitosis Spindle fibers dissolve Nucleus reforms
Chromatids unwind into chromatin
Cytokinesis occurs (splitting of cytoplasm)
NOT APART OF TELOPHASE
End result: 2 identical diploid cells

10. ?
Cell plate

11. Real Mitosis video clip
Animated Mitosis Clip
Real Mitosis video clip

12. Name that Stage! Metaphase Hint:
Chromosomes are aligned in middle of cell

13. Name that Stage!
Telophase
Hint:
Cell plate is splitting the cell

14. Name that Stage! Interphase Hint:
Two normal looking nuclei of two cells

15. Name that Stage! Prophase Hint:
Chromosomes are forming and the nucleus is gone

16. Name that Stage!
Anaphase
Hint:
Chromatids are being pulled apart

17. Prophase
Metaphase
Interphase
Telophase
Anaphase

19. Name this stage of the cell cycle.

20. Name this stage of the cell cycle.

21. Name this stage of the cell cycle.

22. Name this stage of the cell cycle.

23. Name this stage of the cell cycle.

24. Name this stage of the cell cycle.

25. Name this stage of the cell cycle.

26. Name this stage of the cell cycle.

27. Name this stage of the cell cycle.

28. Name this stage of the cell cycle.

29. Name this stage of the cell cycle.

30. Name this stage of the cell cycle.

31. Name this stage of the cell cycle.

32. Mitosis
A Quick Overview

33. REVIEW In order, name the 5 stages of the cell cycle.
Pick a stage of the cell cycle. Name two things that happen in this stage.
Review the picture slides. Identify the stages based on the picture.
The division of the cytoplasm is called _____.
Which cells divide by mitosis?
During which interphase stage is DNA created?
During which stage do spindle fibers form?
During which stage are chromosomes aligned in the middle?
During which stage are chromatids separated?
During which stage does the nucleus dissolve?