1. Cell Reproduction Mitosis and Binary Fission

2. Three Schemes

3. Major Events in Mitosis

4. Vocabulary MitosisMitosis = division of the cell nucleus and its contents CytokinesisCytokinesis = the division of cell cytoplasm into two identical daughter cells ChromatinChromatin = the combination of DNA and histone proteins DiploidDiploid = Two copies of each chromosome, one paternal, one maternal

5. Chromosomes in the Larger Scheme

6. Chromosome Structure  1 – Chromatid  2 – Centromere  3 – Short arm  4 – Long arm

7. Telomeres  Do not code for genes  Keep ends of chromosomes from sticking to each other  Prevent loss of genes

8. The Cell Cycle

9. Prophase

10. Metaphase

11. Anaphase

12. Telophase

13. Cytokinesis

14. Mitosis in Onion Root Tip

15. Binary Fission  The primary method of reproduction for prokaryotes  Does not require a mate  Is asexual reproduction  Does not increase the variation in a population

16. Binary Fission Central growthApical growth