Q:

What is the purpose of mitosis?

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Quick Answer

The purpose of mitosis is cell reproduction, regeneration and growth. Mitosis is cell division that occurs in the nucleus of a cell. The result of mitosis is the formation of two cells, called daughter cells, that are genetically identical to the original cell.

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What is the purpose of mitosis?
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Full Answer

The first purpose of cell mitosis is the reproduction or growth of new, identical cells. The second purpose of mitosis is the repair of cells that are damaged due to normal aging.

There are five phases of mitosis: interphase, prophase, metaphase, anaphase and telophase. During interphase, chromosomes inside the cell replicate into an identical copy. In prophase, chromosome replication is visible. The chromosomes have shortened and are attached to each other.

Metaphase occurs when the chromosomes are aligned in the center of a cell, and spindle fibers form and attach to each pair of chromosomes. Anaphase mitosis occurs when paired chromosomes split at the centromere, or the point on the chromosome where the spindle fibers attach. The cell then begins to divide.

Telophase is the final stage of mitosis, in which cell division occurs and forms two cells identical to the original cell. These cells then revert to interphase mitosis and begin the process of cell division again.

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Related Questions

  • Q:

    Where does mitosis occur in plants and animals?

    A:

    Mitosis occurs in almost all cells in plants and animals. It begins in the nucleus of the cell. As neurons become specialized (terminal differentiation) mitosis is switched off, so the cells can no longer reproduce.

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  • Q:

    How do mitosis and meiosis compare and contrast?

    A:

    Mitosis is the division of a cell to create two identical daughter cells, whereas meiosis forms daughter cells that are different than the parent cell. Mitosis is a means of replacing old cells; meiosis forms sex cells, or gametes.

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  • Q:

    What are the main differences between mitosis and meiosis?

    A:

    Though both meiosis and mitosis involve the division of a cell, meiosis generates a cell used for sexual reproduction, while mitosis generates a cell used for growth. Mitosis produces two cells that are identical to the parent cell. Meiosis produces four cells that each contain half the number of chromosomes of the parent cell. Chromosomes are DNA containing genetic information.

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  • Q:

    What are the phases of mitosis?

    A:

    The phases, or stages, of mitosis include interphase, prophase, prometaphase, metaphase, anaphase, telophase and cytokinesis. Each full mitosis process produces two identical daughter cells from one original cell.

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