The document summarizes the stages of the cell cycle. It describes that during interphase DNA replicates and proteins are produced. In prophase, chromosomes form as the nucleus fades. During premetaphase, the chromosomes line up in the middle. In metaphase, the chromosomes align in the center. In anaphase, the chromosomes move to opposite ends. Telophase sees the disappearance of spindle fibers. Finally, cytokinesis separates the cell into two sister cells to complete the cycle and interphase begins again.

1. Cell Cycles By Lindsay Corbould

2. First Interphase During Interphase (the longest part of the cell cycle) DNA replicates, proteins are produced and the centrioles divide.

6. Prophase During prophase the nucleus starts to fade and the replicated DNA and necessary proteins (chromatin) form chromosomes. Each chromosome is made of two chromatids which contain the same genetic information for when the cell splits.

9. Premetaphase During premetaphase the nucleus has completely faded and the chromosomes start to line up in the middle in order to be split for the sister cells.

12. Metaphase During metaphase the spindle fibers create tension causing the chromosomes to align in the center of the cell

13. Anaphase During anaphase the spindle fibers shorten and the chromosomes start moving to opposite ends of the cell

15. Telophase During telophase the spindle fibers that pulled the chromosomes to opposite ends of the cell disappear

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19. Cytokinesis v Spindle fibers are only left in the overlap where the contractile ring separates it into two sister cells

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24. Interphase As the cells return to interphase the whole process starts again