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4. __Long Arms_________. Most eukaryotic cells spend most of their time in interphase. For example, human skin cells, which divide about once a day, spend roughly 22 hours in interphase. About 90 percent of cells are in interphase. Some cells, such as nerve cells, can stay in interphase for decades.
The first phase is prophase. Cells in prophase have an enlarged nucleus, the nucleolus is no longer visible, and the chromosomes appear as short jumbled strands within the nucleus. Cells spend about 14 percent of the cell cycle in prophase. This is the next largest amount of time spent in a phase after interphase.