Q:

What is a cell plate and in what stage of mitosis does it form?

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Quick Answer

A cell plate is a cell divider and the beginning stage of a new cell wall, which develops during the last phase of mitosis known as telophase. Mitosis is the process of cell division whereby new cells replicate themselves and divide into two new cells. The appearance of a cell plate during telophase is one of the last steps in separating two cells from each other.

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Full Answer

Mitosis has four phases that occur in the following order: prophase, metaphase, anaphase and telophase. In a pre-prophase stage known as interphase, which is a replication stage, the chromosomes duplicate themselves. During prophase, the chromosomes condense and the nuclear membrane disappears. Then, the spindle fibers attach to the centromeres and the centromeres begin to move away from each other to opposite sides of the cell. During prometaphase, the pre-stage to metaphase, the nuclear envelope fragments and the microtubules of the spindles begin to interact with the chromosomes. The spindle fibers continue to pull the centromeres away from the center during metaphase, and eventually, the centromeres are aligned down the center of the cell. Next, the centromeres begin to separate from each other and move to opposite sides of the cell. Finally, during telophase a cell plate appears, the nuclei reform and the cells separate.

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