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Published byCael Yard Modified over 9 years ago
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Cell Division
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1) Binary Fission: division of a prokaryote cell into 2 identical offspring Binary Fission a) Chromosome are copied b) Cell enlarges c) Cell Membrane develops between the two chromosomes
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1) Mitosis: cell replication to produce cells identical to the original Mitosis 2) Meiosis: production of gametes (egg/sperm cell), that contain half the organisms genetic info. Meiosis
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1) Cell Cycle: life of a cell from its origin in the division of a parent cell until its own division into 2 a) Interphase- preparation for Mitosis b) Mitosis- nuclear division c) Cytokinesis- cytoplasmic division
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1) Interphase: 3 steps that will prepare the cell for cell division a) G 1 phase: Growth of cell b) S phase: DNA Replicated c) G 2 phase: Growth of cell d) G 0 phase: Dormant
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1) Prophase: a) Nuclear membrane disappears b) Replicated DNA coils into a chromosome c) Centrosomes move towards poles of cell d) Spindle Fiber extend
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-Characteristics of Prophase -Spindle Fibers: divides sister chromatids btwn two cells
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2) Metaphase a) spindle fibers line chromosomes up in the center of the cell at metapheseal plate
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3) Anaphase a) chromosomes separate equally and move toward poles of the cell
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4) Telophase a) Spindle fibers break off b) chromosomes loosen to form chromatin c) Nuclear membrane forms around chromosomes
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1) Division of the cytoplasm 2) Animal Cells: cleavage furrow forms in btwn each set of nuclei 3) Plant Cells: cell plate forms in btwn each set of nuclei
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