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Mitosis is a form of Nuclear Division and is part of a specifically controlled process called the cell cycle. The length of the cell cycle is very inconsistent, and depends on the environment and the cell type.

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Introduction

´╗┐Mitosis ?Mitosis is the division of a nucleus such that the two daughter cells acquire exactly the same number and type of chromosomes as the parent cell.? Mitosis is a form of Nuclear Division and is part of a specifically controlled process called the cell cycle. The length of the cell cycle is very inconsistent, and depends on the environment and the cell type. The cell cycle is the period between one cell division and the next one. ...read more.

Middle

The DNA in the nucleus replicates to make each chromosome consist of two identical chromatids, each with a copy of the cell?s DNA. The process of nuclear division follows the interphase. It is a continuous process. This takes part in four phases: prophase, metaphase, anaphase and telophase. In the following example only four chromosomes are shown to make the diagram clearer. And male and female chromosomes are distinguished by their colour. This is an animal cell, but the activities of the chromosomes in plant cells are the same. ...read more.

Conclusion

Metaphase In Metaphase the nuclear envelope breaks down and, ?disappears? (breaks up into small vesicles). The centriole pairs reach the poles and the spindles are completely formed. The Chromosomes continue to condense. Microtubules of the spindle attach to the centromeres of the chromosomes; they pull on the centromere arranging the chromosomes on the equator. Anaphase In Anaphase the links between the sister chromatids break and the centromeres of the sister chromatids move apart pulled by microtubules of the spindle. Telophase In Telophase sister chromatids, which are now effectively separate chromosomes, reach opposite poles, the chromosomes decondense and nucleolus begins to reappear. The nuclear envelope appears and the spindle disappears. ...read more.

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