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Cell Cycle Stages Worksheet Write the events in the correct steps of the cell cycle. Stage Events G1 Interphase spindle fibers attach to chromosomes chromosomes condense into visible structures chromatids are pulled apart by spindle fibers spindle fibers appear S cell starts to grow G2 spindle fibers disappear Prophase DNA replicated formation of 2 daughter cells resting period centrioles move toward opposite ends of cell nuclear membrane reappears organelles are doubled protein synthesis chromosomes no longer clearly visible nuclear membrane disappears cell membrane pinches in around nuclei cytoplasm divided formation of 2 nuclei restriction point cell continues to grow Metaphase Anaphase Telophase Cytokinesis Per. Events to place in order chromosomes line up in the middle of cell G0 Mitosis Name Name: ________________________ 1st: _________________________ Chromosomes are ________________________. 2nd: __________________________ ___________________ begins (cell division) __________________ __________________ disappears ___________________ appear and begin to move to opposite ends of the cell ______________ _______________ form between the poles 3rd: ___________________________ 4th: ___________________________ 5th: ___________________________ 6th: ___________________________ Chromosomes attach to the ___________ ____________. Chromosomes line up in the ______________ of cell. _________________ breaks down Chromatids _____________ and move to ________________ ends of cell. Two new ______________ form. _________________ ends. Cell membrane moves inward to create two _________________ cells, each with identical ____________________.
