1. The Process of Cell Division

2. Learning Objectives  Describe the role of chromosomes in cell division.  Name the main events of the cell cycle.  Describe what happens during the four stages of mitosis.  Describe the process of cytokinesis.

3. Chromosomes In prokaryotic cells, DNA is packaged into a single, circular chromosome.

4. Chromosomes In eukaryotic cells, DNA is packaged into multiple chromosomes. duplicated chromosome centromere sister chromatids supercoils coils histone proteins nucleosome DNA double helix

5. Prokaryotic Cell Cycle Prokaryotes undergo binary fission.

6. Eukaryotic Cell Cycle Eukaryotic cells have a more complex cell cycle than prokaryotic cells.

7. Which Cell Cycle? bacteria plants

8. M Phase Cell division occurs during M phase.

9. Prophase The nucleus condenses and chromosomes become visible. The spindle begins to form.

10. Metaphase Chromosomes line up at the center of the cell. centrioles centromere chromosome chromatid

11. Anaphase Chromosomes move toward opposite poles. individual chromosomes

12. Telophase The cell begins to divide into daughter cells. nuclear envelopes re-forming

13. Cytokinesis pinches in the center to form two daughter cells. Cytoplasm

14. Mitosis Overview List and describe the stages of mitosis. Interphase 1 2 3 4 Cytokinesis Prophase Metaphase Anaphase Telophase

15. Student Worksheet Answers