Mitosis

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  • 1. Mitosis www.sawyerscience.com
  • 2. Cell Cycle
    • Cell Growth
    • DNA Replication
    • Preparation for Cell Division
    • Cell Division
  • 3. 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
  • 4. Phases of MITOSIS
    • Prophase
    • Metaphase
    • Anaphase
    • Telophase
  • 5. 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.
  • 6. Metaphase
    • The centromeres of the chromatid pairs are lined up in the center of the cell.
  • 7. Anaphase
    • Spindle fibers pull chromatids apart, separating each one from its duplicate.
    • The cell now has two identical sets of single chromosomes.
  • 8. 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
  • 9.