1. 9.2 Mitosis and Cytokinesis
Main idea: Eukaryotic cells reproduce by mitosis, the process of nuclear division, and cytokinesis, the process of cytoplasm division

2. Mitosis
The cell’s replicated genetic material separates and the cell prepares to split
This leaves 2 genetically identical daughter cells

3. The Stages of mitosis
Prophase
Metaphase
Anaphase
Telophase

4. Prophase The chromatin condenses into chromosomes
Each half is a sister chromatid
Each has a identical copy of DNA

5. Prophase The nucleolus disappears Spindle fibers form
The nuclear envelope disappears
Spindle fibers attach to each sister chromatid

6. Metaphase The second stage of mitosis
The sister chromatids line up in the middle of the cell

7. Anaphase The spindle fibers shorten and separate the sister chromatids
The chromosomes move to opposite ends of the cell

8. Telophase The last stage of mitosis
Chromosomes arrive at opposite ends of the cell
Chromosomes decondense to form chromatin

9. Telophase 2 Nuclear membranes form and the nucleoli reappear
The spindle fibers disassemble

10. Cytokinesis After mitosis the cytoplasm divides
This forms 2 cells with identical nuclei
Microfilaments pinch the cytoplasm into 2 separate half's

11. Cytokinesis
In plant cells instead of pinching in half a cell plate forms between the two new nuclei

13. Prokaryotic Cells Prokaryotic cells divide by binary fission
Both copies of the DNA attach to the plasma membrane
As the membrane grows the DNA is pulled apart