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14 Cards in this Set

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spindle
thin fiber structure that forms between the two poles or centrioles during prophase and shortens during anaphase, pulling the sister chromatids apart
centromere
cell structure that joins two sister chromatids of a chromosome
telophase
final stage of mitosis during which the two daughter cells become separated
centriole
pair of cylindrical structures composed of microtubles that duplicate during interphase and move to opposite ends of the cell during prophase; found in animal cells but seldom in plants cells
sister chromatid
identical halves of the duplicated parent chromosomes formed before the onset of cell divison; these exact copies are joined are the centromere
cell cycle
continuous sequence of growth (interphase) and divison (mitosis) of a cell, which is controlled by key enzymes
gene
a segment of DNA located on the chromosome; directsthe protiens production that controls the cell cycle
chromosome
cell structure that carries that genetic material
interphase
growth period of a cell during which chromosomes are duplicated
cancer
uncontrolled cell divison and death caused by the interactions between environmental factors and changes in the production of enzymes involved in the cell cycle
mitosis
cell divison during which chromosomes are equally disturbed to the two identical daugther cells that are formed; results in growth
anaphase
stage of mitosis during which the centromeres split and sister chromatids are pulled apart to opposite poles
prophase
1st phase of mitosis during which chromatin coils to form visible chromosomes
metaphase
second stage of mitosis in which chromosomes move to the equator of the spindle and chromatids are wach attached bye centromeres to a separate spindle fiber