1. The Cell Cycle and Mitosis Biology

2. About 2 trillion cells are produced by you every day Per second? About 25 million Egg/Sperm  “Zygote”  Embryo  Fetus  Baby

3. “Cell Division” “Cell Reproduction”

4. THE CELL CYCLE = sequence of growth and division - Interphase - Mitosis 2 Stages?

6. DNA Replication Exact copies of Chromosomes S **DNA must be copied then distributed

7. Chromosome DNA Gene Chromosome = consists of DNA tightly coiled around proteins

8. HUMANS “Somatic cells” (body cells) # Pairs? Single? 23 46

9. Why pairs? Dad Mom Diploid = 2n Autosomes Sex Chromosomes Pair 23 = Pair 1-22 =  Gene Gene 

10. MITOSIS PMAT Cytokinesis Acronym? Prophase Metaphase Anaphase Telophase Phases?

11. 92 46 PMAT Cytokinesis 46

12. Chromosome  Sister Chromatids  DNA pairs find “partner” = Sister Chromatids “Homologous Chromosomes”

13. 46   P A M T Pairs?

15. Mitosis Videos www.cellsalive.com http://www.youtube.com/user/ndsuvirtualce llhttp://www.youtube.com/user/ndsuvirtualce ll http://www.youtube.com/watch?v=cvlpmm vB_m4http://www.youtube.com/watch?v=cvlpmm vB_m4

16. CYTOKINESIS Animal “Cleavage Furrow” Plant “Cell Plate”

17. Daughter Cells go? Interphase

18. Anaphase Metaphase Prophase Interphase Telophase 1 2 3 4 5

19. Cancer = uncontrolled growth/division of cells If gene that contains info for cell growth/division is mutated = Cell growth/division unregulated

20. Tumor “benign tumor”“malignant tumor” Metastasis Chemotherapy with toxic drugs. Radiation therapy = a mass of abnormal cells. Therapy? (start more tumors) Mammograms 