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10.2 Mitosis

10.2 Mitosis. I. Cell Cycle A. G 1 – Cell Growth S – DNA Copied G 2 – Grow & Prepare for Mitosis M – Mitosis – nucleus replicates & separates C – Cytokinesis - cytoplasm separates - cell division. Interphase. II. Mitosis

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10.2 Mitosis

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  1. 10.2 Mitosis I. Cell Cycle A. G1 – Cell Growth S – DNA Copied G2 – Grow & Prepare for Mitosis M – Mitosis – nucleus replicates & separates C – Cytokinesis - cytoplasm separates - cell division Interphase

  2. II. Mitosis A. The nucleus divides to form two nuclei each with a complete set of chromosomes B. Stages 1. Prophase a. chromosomes become visible b. nuclear envelope disappears c. spindle fibers form

  3. 2. Metaphase a. chromosome move to equator b. attach to spindle fibers

  4. 3. Anaphase a. chromatids separate as spindle fibers shorten

  5. 4. Telophase a. spindle fibers disappear b. new nuclear envelope forms around separate chromatids (aka new chromosomes)

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