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558 WordsSep 23, 20153 Pages
Name: Dave J. Lopez September 23, 2015 BSBM-2C General Biology * The Mitosis and Meiosis : “M I T O S I S” * a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth. * The stages of the cell cycle can be broken down into five stages: * Interphase, Prophase, Metaphase, Anaphase, Telophase Interphase * is the "resting" or non-mitotic portion of the cell cycle. * It is comprised of G1, S, and G2 stages of the cell cycle. * DNA is replicated during the S phase of Interphase.Prophase - the first stage of mitosis. * The chromosomes condense and become visible * The centrioles form and move toward opposite ends of the cell ("the poles") * The nuclear membrane dissolves * The mitotic spindle forms (from the centrioles in animal cells) * Spindle fibers from each centriole attach to each sister chromatid at the kinetochore. Metaphase * The Centrioles complete their migration to the poles * The chromosomes line up in the middle of the cell ("the equator")Anaphase * Spindles attached to kinetochores begin to shorten. * This exerts a force on the sister chromatids that pulls them apart. * Spindle fibers continue to shorten, pulling chromatids to opposite poles. * This ensures that each daughter cell gets identical sets of chromosomes.Telophase * The chromosomes decondense * The nuclear envelope forms * Cytokinesis reaches completion, creating two daughter cells. “M E I O S I S” * the

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