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  • Mitosis: Understanding Nuclear Division in the Cell Cycle
    The stage of the cell cycle where the cell nucleus divides is called mitosis.

    Here's a breakdown:

    * Interphase: This is the stage where the cell grows and replicates its DNA. It's not part of mitosis itself, but it's the preparation phase.

    * Mitosis: This is the actual process of nuclear division, and it's further divided into four stages:

    * Prophase: The chromosomes condense and become visible, the nuclear envelope breaks down, and the spindle fibers begin to form.

    * Metaphase: The chromosomes line up at the center of the cell, attached to the spindle fibers.

    * Anaphase: The sister chromatids (copies of each chromosome) separate and move to opposite poles of the cell.

    * Telophase: The chromosomes reach the poles, the nuclear envelope reforms around each set of chromosomes, and the spindle fibers disappear.

    After mitosis, the cytoplasm divides in a process called cytokinesis, resulting in two identical daughter cells.

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