1. MITOSIS

2. Cell Division
All cells come from pre-existing cells through cell division
This is how life is continued
Two major phases;
interphase and cell division

3. Cell Cycle Cells alternate btwn stages of dividing & not dividing
Cell division = small part of the cell cycle

4. MITOSIS
The process of cell division that R-> in growth and/or cell replacement

5. Cell division = dividing of nuclear materials and the sharing of cytoplasm, including the organelles.

7. Mitosis Animation

8. Mitosis Phases

9. Mitosis Phases
Duplicated chromosomes divide and move to opposite ends of the cell
Cell division continues with the separation of the cytoplasm into equal parts, creating two new cells
The final step is the separation of the two cells - in animal cells, the cell membrane pinches together in the middle separating the cells

12. Class Work
From what we know about mitosis, answer the following questions.
1) Describe what happens during interphase.
2)Why does your DNA duplicate before it divides.
3) List and describe four phases of mitosis.
4) A normal cell has 46 chromosomes. After the cell has undergone mitosis , how many chromosomes would you expect to find in each cell? Why ?