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Unformatted text preview: make duplicate copies of its chromosomes G2 phase o Second gap phase Mitosis o The nuclear division that produces two nuclei containing chromosomes identical to the parental nucleus During prophase, duplicated chromosomes become visible with the microscope Prophase o When the long chromatin fibers begin a coiling process that makes them shorter and thicker Sister chromatids o Contain identical, double-stranded DNA sequences Centromere o Constricted region on a chromosome Cohesin o A ring-shaped protein complex that physically links sister chromatids Kinetochore o A multiprotein complex to which microtubules can bind Mitotic spindle o A structure that separates the duplicated chromosomes during anaphase Microtubule-organizing center o A region from which extend the microtubules that form the mitotic spindle...
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