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The Phases Of The Cell Cycle

720 words - 3 pages

There are four stages when it comes to the stages if the cell cycle. These sections are: G1 which stands for GAP 1 taking approximately 5-6 hours , S phase for synthesis taking approximately 10-12 hours, roughly half the cell cycle time, G2 meaning GAP 2 taking approximately 4-6 hours , and M for mitosis which can take a hour or less. Mitosis is broken down even further into four more phases in itself. These phases of mitosis in order create the acronym PMAT. The four phases of mitosis are: the prophase, metaphase, anaphase, and telophase. The cell cycle is actually two phases, the interphase which is ~90% of the cell cycle consisting G1, S stage, and G2. The second phase is mitosis, which ...view middle of the document...

SparkNotes
G2 is the inspector of the cell cycle. Ensuring that the cell has properly and completely finished the DNA replication to begin the cell division following after it completes its process in G2 phase. Aside from being the inspector of how developed the cell is, G2 also gives the cell one last chance to finish developing if it has not done so before it turns into two separate cells through mitosis. SparkNotes
Once the cell has completely went through stages G1, S stage, and G2 it begins to move into the prophase of mitosis. During the prophase, the cell's chromosomes show as two chromatids which connect with the centromere. As well as the nucleolus and nuclear membrane break down. Lastly, the centrioles separate further away from each other to create the spindle. Once the cell passes through the prophase it goes to the metaphase. During this phase the spindle pulls the chromosomes to align at the equatorial plane. The two chromatids remain in place with each of the chromosomes. After completing the metaphase, comes the anaphase....

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