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Mitosis Cell Reproduction
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Mitosis Notes Asexual Reproduction – offspring are produced that are genetically identical to the parent Mitosis – the asexual reproduction process of cell division
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Mitosis Notes During cell division …
It is essential that the DNA is replicated The number of chromosomes NEVER changes Each daughter cell gets its own copy of the DNA
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The Phases of Mitosis Interphase Prophase Metaphase Anaphase Telophase
Cytokinesis Mnemonic Device I mmediatly P lease M eet A t T he C ircus
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MITOSIS: Starts with one cell Chromosomes are copied
Daughter cells are IDENTICAL to the original cell
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Interphase What happens? DNA replicates Cell looks normal
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INTERPHASE
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Prophase What happens? Nuclear membrane disappears Chromosomes appear
Centrioles begin to move
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PROPHASE
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Metaphase What happens?
Spindle fibers line the chromosomes up in the middle of the cell
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METAPHASE Chromosomes lined in center of cell Spindle fibers attach
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Anaphase What happens? The spindle fibers pull the chromosomes apart at the middle
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ANAPHASE Chromosomes pulled to opposite ends of the cell by spindle fibers
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Telophase What happens? Nuclear membrane reappears
Chromosomes disappear The cell begins to be pinched in the middle
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New cell wall is starting to form
TELOPHASE New cell wall is starting to form early-TELOPHASE late-TELOPHASE
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Cytokinesis What happens? The cell is pinched in half
Two identical cells are made
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CYTOKINESIS Two new daughter cells that are IDENTICAL to the original cell!
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