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Cell Cycle & Mitosis

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Cell Cycle & Mitosis. Cell Cycle. Cell Cycle = IMPAT I = Interphase MPAT= Stages of Mitosis. Cell Cycle. Mitosis. Interphase (stage before mitosis!) G1 + S + G2 = Interphase Cell grows, makes more cytoplasm and organelles duplicate, copies DNA, and gets ready to divide. Prophase.

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Presentation Transcript
cell cycle
Cell Cycle
  • Cell Cycle = IMPAT
  • I = Interphase
  • MPAT= Stages of Mitosis
mitosis
Mitosis
  • Interphase (stage before mitosis!)
    • G1 + S + G2 = Interphase
    • Cell grows, makes more cytoplasm and organelles duplicate, copies DNA, and gets ready to divide
prophase
Prophase
  • Chromosomes shorten & thicken
  • Centrioles move to opposite poles of the cell
  • Spindle fibers extend from the centrioles toward each chromosome
  • Nuclear membrane dissolves
metaphase
Metaphase
  • During late prophase chromatids begin to move toward the cell equator (metaphase plate)
  • At metaphase the chromatids are aligned at the equator
anaphase
Anaphase
  • Chromatids begin to move apart, toward opposite poles
telophase
Telophase
  • Chromosomes reach opposite poles of the cell
  • Spindle fibers dissolve
  • Nuclear membrane reforms at each end of the cell
cytokinesis
Cytokinesis
  • Cytokinesis = splitting of the cytoplasm
  • Not an actual “phase of mitosis”.
  • The division of cytoplasm after separation of the chromosomes
  • In plant cells, a new cell wall forms to divide the two daughter cells (CELLPLATE)
  • In animal cells, the cleavage furrow forms
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