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Mitosis
 

Mitosis

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    Mitosis Mitosis Presentation Transcript

    • Mitosis www.sawyerscience.com
    • Cell Cycle
      • Cell Growth
      • DNA Replication
      • Preparation for Cell Division
      • Cell Division
    • Interphase
      • Cell Growth
          • The cell grows & gains enough food and substance for two.
      • DNA Replication
          • Chromosomes form exact copies
      • Preparation for Mitosis
          • Makes double proteins, enzymes, mitochondria, etc.
          • Centrioles duplicate
    • Phases of MITOSIS
      • Prophase
      • Metaphase
      • Anaphase
      • Telophase
    • Prophase
      • The chromosomes, now called chromatids , form and pair up in the center of the nucleus.
      • A centromere connects the two halves.
      • In the cytoplasm spindle fibers begin to form.
      • The centrioles move to opposite sides of the cell, and the nuclear membrane breaks apart.
    • Metaphase
      • The centromeres of the chromatid pairs are lined up in the center of the cell.
    • Anaphase
      • Spindle fibers pull chromatids apart, separating each one from its duplicate.
      • The cell now has two identical sets of single chromosomes.
    • Telophase/ Cytokinesis
      • Chromosomes reach opposite ends
      • Spindle fibers break into proteins.
      • A nuclear membrane forms around each set of chromosomes.
      • The furrow deepens & cell divides completely
    •