4. 1.When do cells use it? a)Growth b)Repair c)Replacement 2.Cell that reproduce by asexual reproduction reproduce constantly.

5. 1.Division of somatic cells (body) 2.Process in which the nucleus divides to form 2 new nuclei Somatic Cell Daughter Cells Performed by a single (parent) cell

7. 1.Organized structure of DNA in the cell 2.Located in the nucleus 3.Usually are uncoiled in the form of chromatin 4.Only visible when the cell divides and the chromatin condenses 5.Held together by a centromere

8. (do not write) Interphase Prophase Metaphase Anaphase Telophase **Animated Video**Animated Video

9. a)Prior & After Mitosis b)G1 period i.90% of cell life spent here ii.Cell goes about it’s business c)S period i.DNA is duplicated d)G2 period i.Cell prepares to divide e)Cannot see DNA- uncoiled as chromatin

10. a)DNA becomes visible as chromosomes b)Nuclear membrane dissolves c)Centrioles migrate to opposite poles d)Spindle fibers form Easy to remember- Prophase- prepares for mitosis

11. a)Spindle fibers attach to centromeres b)Chromosomes line up at midline of the cell Easy to remember- metaphase, DNA at middle Spindle Equator Pole

12. a)Spindle fibers pull apart centromeres b)One chromatid goes to each centriole (they look like V’s) Easy to remember- anaphase, away they go

13. a)Chromatids reach centrioles b)Mitosis ends when new nuclear membranes form c)Some evidence of cell dividing Easy to remember- telophase, terminal phase

14. a)Division of Cytoplasm b)Technically not in mitosis i.Animal cell- pinching of cell membrane- cleavage ii.Plant cell- formation of new cell wall- cell plate iii.DNA becomes non- visible, back to chromatin c)Daughter cells enter G1 period of interphase

16. Cells with a complete set of chromosomes called diploids Humans have 46 chromosomes or 23 pairs of chromosomes Human diploid # = 23 Most cells are diploid

17. Uncontrollable mitosis (no G1) – Cells cease to do what they are supposed to be doing in favor of dividing. Cancer does not “poison” your body…

18. 1951, a poor 31 Year old African American mother of 4 was dying of cervical cancer @ Johns Hopkins Hospital – Dr. George Gey- sampled some of the cancerous cells, found they could live indefinitely and multiply outside the body – She died 6 months later, but cells still live on HeLa cells – Used to study many different diseases – Polio Vaccine – How to transport cells

19. First, lets watch: University of Madison Mitosis Shuffle Your turn! “The Hustle” by Van McCoy

20. Homework Mitosis Booklet – 3 pgs – 5 phases – 6 colors (one per chromosome)