Cell Division

Cell Division - Cell Division Life Cycle of a Cell Life...

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Cell Division
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Life Cycle of a Cell
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Life cycle of a Cell G 1 If cell divides: S-stage – duplication of DNA G 2 – duplication of organelles Actual cell division
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Chromosome Numbers Chromosome Numbers Diploid or 2N Diploid or 2N full # of chromosomes – full # of chromosomes – body cells body cells Haploid or 1N Haploid or 1N half the # of half the # of chromosomes - gametes chromosomes - gametes
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Mitosis Mitosis 1. 1.     growth, development, healing  growth, development, healing  2. 2. Daughter cells -  Daughter cells -  genetically identical genetically identical  to    to   parent cell parent cell
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Mito s is 1. As e xua l re pro duc tio n  - budding -binary fission -gemmules -regeneration -fragmentation
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Budding in Hydra Saburchill.com
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Binary Fission Content.tutorvista.com
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Gemmules in Sponges Flmnh.ufl.edu
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Regeneration in Seastars Wikipedia.com
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Content.tutorvista.com
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Mitosis Parent cell (2N) 2 daughter cells (2N/diploid)
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Interphase not undergoing cell div G1, S-stage, G2 stages DNA has no shape – chromatin
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Interphase
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Prophase Chromatin appears as paired strands sister chromatids linked in middle by centromere
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Prophase Spindle fibers attach to each sister chromatid at kinetochore
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Prophase
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Metaphase Prs of sister chromatids line up along ‘imaginary’ equator
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Metaphase
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Anaphase Pairs of sister chromatids separate
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Anaphase
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Telophase Cytokinesis division of cytoplasm Prod 2 diploid daughter cells
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Telophase
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This note was uploaded on 09/21/2009 for the course BIO 10 taught by Professor Ruthkern during the Spring '09 term at CSU Fresno.

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Cell Division - Cell Division Life Cycle of a Cell Life...

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