Q:

What happens during prophase?

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Quick Answer

Prophase is one of the first phases of mitosis and it focuses on preparing the spindles, metaphase plate and chromosomes to work in the later phases of the process. Prophase exists in both mitosis and meiosis.

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What happens during prophase?
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Full Answer

During mitosis and meiosis, prophase is the first phase of the division cycle after DNA replication in G and S phases. The main value of prophase is that the chromatin condenses to become chromosomes, which will later be separated in various ways during the final stages of mitosis and meiosis. The nucleolus in the nucleus also disappears and the cell membrane disappears, which makes it easy for the cell to start to divide into two. The miotic spindles on both sides of the cell, which is made of microtubules, is formed during prophase and gets ready to move. This is an important part of the division, as it pulls the chromosomes apart to their respective side.

In both meiosis and mitosis, prophase plays the same role; there are no differences between the three instances, except for the fact that meiosis is only with sex cells (gametes) and mitosis is with regular somatic cells. In meiosis, prophase happens twice because there are two divisions that result in four total cells.

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Related Questions

  • Q:

    How are mitosis and meiosis similar?

    A:

    Both mitosis and meiosis are types of cell division that share many similarities, and both share the same basic stages of prophase, metaphase, anaphase and telophase, according to the University of Illinois at Chicago. Both begin with changes in the organization of DNA in the nucleus of a cell.

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  • Q:

    What are the stages of mitosis?

    A:

    The stages of mitosis are prophase, prometaphase, metaphase, anaphase and telekinesis. Mitosis is a biological activity essential for reproduction. In this series of stages, it involves the duplication and division of chromosomes into different groups.

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    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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  • Q:

    What would happen if mitosis skipped metaphase?

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    If mitosis skipped metaphase, the cell would most likely not divide, because the chromosomes must be in the center of the cell in order for anaphase to complete properly. However, it is still possible for the cell to split, but it would leave one daughter cell without chromosomes.

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