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Cell Cycle
Phases of the cell cycle
Term | Definition |
---|---|
mitosis | divison of the nucleus |
interphase | the cell grows and prepares to divide |
cytokinesis | division of the cytoplasm |
G1, S, G2 | 3 parts of interphase |
cell cycle | series of events in which the cell grows and divides |
cell division | mitosis & cytokinesis when 2 indentical cells are made |
G1 | first part of interphase when the cell grows |
S | DNA replicates |
G2 | organelles are made |
G0 | checkpoints that the cell goes through |
somatic | body cells in which mitosis occurs |
4 stages of mitosis | prophase, metaphase, anaphase, telophase (PMAT) |
Prophase | chromosomes become visible, nuclear membrane and nucleolus disappear, centrioles start making spindle fibers |
Metaphase | chromosomes line up in the middle |
Anaphase | sister chromatids are pulled apart and move towards opposite poles |
Telophase | chromosomes reach opposite poles, chromosomes decondense or unwind, nuclear membrane and nucleolus reappear |
Sister chromatids | two identical parts of a chromosome |
centromere | connects the sister chromatids together |
cell plate | forms during cytokinesis in a plant cell |
cancer | uncontrolled cell growth because cells do not go through G0 and the cycle repeats. |
skin, hair, and nails | integumentary system |