Cell Cycle and Mitosis

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10 Terms

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Cell Cycle

  1. A series of stages that occur for the cell to divide properly

  2. Broken down into 5 major phases: interphase, prophase, metaphase, anaphase, and telophase


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Daughter Cell

  1. Name for the two cells produced from mitosis

  2. DNA in each is an exact copy, making them genetically identical


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Interphase

  1. First stage of the cell cycle

  2. Subdivided into three separate stages

  3. 75% of the cell cycle is spent in interphase


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G1 Stage

  1. Cell performs normal functions

  1. Cell grows larger

  2. Additional organelles are created


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S Stage

  1. DNA is synthesized/an extra copy is made


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G2 Stage

  1. Cell performs normal functions

  2. Cell continues to grow


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Prophase

  1. Start of mitosis

  2. The nucleus starts to dissolve and break apart

  3. Chromatin condenses to form chromosomes (easily movable packages)

  4. Spindle fibers form


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Metaphase

  1. Chromosomes are pulled by spindle fibers towards the cell’s equator

  2. Spindle fibers attach to the centromeres


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Anaphase

  1. Each chromatid is pulled to the opposite end of the cell by the spindle fibers


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Telophase

  1. Spindle fibers begin to dissolve and disappear

  2. The nucleus reforms around both sets of chromatids

  3. Cytoplasm begins to divide (cytokinesis)

  4. Chromatids unwind back into chromatin