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Animal Cell
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A Replicated Chromosome
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Diploid vs. Haploid Diploid= 2 sets of chromosomes –One set from mom and one set from dad –Chromosomes come in pairs –Humans have 23 pairs of chromosomes Haploid = 1 set of chromosomes –Sperm or egg has 23 single chromosomes
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chromosomes (unduplicated) in parent cell at interphase same chromosomes (duplicated) in interphase prior to mitosis mitosis, cytoplasmic division chromosome (unduplicated) in daughter cell at interphase chromosome (unduplicated) in daughter cell at interphase
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Metaphase chromosomes from a human female
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The Cytoskeleton
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Interphase nuclear envelope pair of centrioles Early Prophase Do not post to Internet Late Prophase
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Metaphase Do not post to Internet AnaphaseTelophase Interphase
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Cytokinesis Mitosis is over, and the spindle is now disassembling. Band of microfilaments at the former spindle equator contracts. The contractions continue and cut the cell in two.
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A Duplicated Chromosome one chromatid its sister chromatid One chromosome in the duplicated state centromere In- text Figur e Page 102
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Homologous Pair
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Meiosis Overview
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Crossing Over
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Meiosis
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Alternation of Generation
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