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Mitosis1
Mitosis1
Mitosis1
Mitosis1
Mitosis1
Mitosis1
Mitosis1
Mitosis1
Mitosis1
Mitosis1
Mitosis1
Mitosis1
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Mitosis1

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Transcript

  • 1. MitosisA model demonstration of this part of cell division.
  • 2. PreparationStart by laying the string circle flat on the table in a “cell like” shape.
  • 3. PreparationAdd the chromosomes – 1 yellow string and 1 red string(note – there are more than this, but for explanation purposes, we shallkeep it simple)
  • 4. PreparationAdd the Centrioles(note – these are MUCH LARGER than normal for demonstrationpurposes)
  • 5. INTERPHASEThe cell remains in this phase as it carries out normal life processes.DNA is replicated before the division process begins. Chromosomeschange to sister chromatids at the end of this phase.
  • 6. PROPHASESister Chromatids are present. Centrioles appear and begin to move toopposite ends of cell. Spindle fibers form between the poles.
  • 7. METAPHASESister chromatids line up along the center of the cell. They attach to thespindle fibers.
  • 8. ANAPHASESister Chromatids separate and are pulled toward cell edges. They movetoward the opposite ends of the cell.
  • 9. TELOPHASENew nucleus forms at each end of the dividing cell. Mitosis is ending.
  • 10. CYTOKINESISThe rest of the cell contents divided between 2 daughter cells. Cellmembrane moves inward to create two cells, each with its own nucleusand identical chromosomes.
  • 11. New cell is formed and the process begins again.
  • 12. How is this modelaccurate?How is this modelinaccurate?

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