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Lecture: Cell Division

Lecture: Cell Division. Pages 123-124 03/01/2013 Learning Target: I will be able to identify and explain the stages of the Cell Cycle and Mitosis. Know:. Are the cells in a human baby the same as a human adult? Explain your answer. . Cell Division. Review ?s. Information. Cell Cycle.

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Lecture: Cell Division

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  1. Lecture: Cell Division Pages 123-124 03/01/2013 Learning Target: I will be able to identify and explain the stages of the Cell Cycle and Mitosis

  2. Know: Are the cells in a human baby the same as a human adult? Explain your answer.

  3. Cell Division Review ?s Information • Cell Cycle • The regular sequence of growth and division of cells

  4. Cell Division Review ?s Information • 3 Stages of Cell Cycle Stage 1: Interphase--cell grows to mature size, copies DNA, prepares to divide into 2 cells A. Growth: cell doubles/produces all parts. B. DNA Replicated (copied)– each cell must have a complete set of DNA to survive.

  5. Cell Division Review ?s Information • DNA • Holds all the info a cell needs in order to do its job. • C. Prepares to divide– cell produces parts needed to divide • Stage 2: Mitosis– Nucleus divides into 2 parts– each part gets DNA

  6. Prophase Metaphase Anaphase Telophase Cell Division Review ?s Information • 4 Phases of Mitosis • (P-MAT) • 1. Prophase: Chromatin condenses to make chromosomes • 2. Metaphase: Chromosomes line up • 3. Anaphase: Centromeres split • 4. Telophase: New nuclear membrane forms around each chromosome

  7. Cell Division Review ?s Information • How long does cell cycle take? • Stage 3: Cytokineses: cell pinches into 2 identical daughter cells • The length of each stage varies depending on type of cell and species cell belongs to.

  8. Summary and Evidence Evidence: Draw the Cell Cycle using the diagram on pages 76-77 in your textbook.

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