Mitosis Stages

The important details of each stage of Mitosis.
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Mitosis
A four-stage process that creates two identical cells from one original cell.
Prophase
The first and longest stage of mitosis. In this stage the chromosomes become visible and the centrioles separate and move to opposite poles of the cell.
Metaphase
The second stage of mitosis. In this stage the chromosomes line up across the center of the cell and become connected to the spindle fiber at their centromere.
Anaphase
The third stage of mitosis. In this stage the sister chromatids separate into individual chromosomes and are pulled apart.
Telophase
The fourth and last stage of mitosis. During this stage the chromosomes gather at opposite ends of the cell and lose their distinct rod-like shapes. Two new nuclear membranes then form around each of the two regions of DNA and the spindle fibers disappear.
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Interphase
A period of cell growth and normal activity. This period comes between mitosis in the cell cycle. Cells that do not need to replicate will spend their time in this stage. If a cell does need to divide, it will copy all of it's DNA while period. This way, the cell has two complete copies of its DNA before it begins the process of mitosis.

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