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23 Cards in this Set
- Front
- Back
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anaphase
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a phase of mitosis and meiosis in which the chromosomes separate
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cell cycle
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the events of cell division – includes interphase – mitosis and cytokinesis
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Cell Plate
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a membrane that divides newly forming plant cells following mitosis.
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Centriole
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a structure that appears during mitosis in animal cells
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Centrosome
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a dark body containing a centriole in animal cells but not in plant cells – spindle fibers radiate from the centrosomes in preparation for mitosis
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Cleavage furrow
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the area of the cell membrane that pinches in and eventually separates the dividing cell.
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Cytokinsis
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the division of the cytoplasm of the cell into two new cells
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G0
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a phase of the cell cycle in which the cell is not dividing and its DNA is not replicating.
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G1
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the first period of interphase- in which the cell doubles in size.
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G2
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the final period of interphase- in which the cell undergoes rapid growth and prepares for mitosis
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Interphase
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a period of cell growth and development that precedes eukaryotic cell nuclear division
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Kinetochore
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a disk- shaped protein found in the centrosome region of a chromosome that attaches the chromosomes to the mitotic spindle
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Kinetochore fiber
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a spindle fiber that extends from the centrosome at one pole of the cell to a chromatid during mitosis
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Meiosis
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the process of nuclear division that reduces the number of chromosomes in a cell by half
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Metaphase
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the second phase of mitosis-during which all the chromosomes move to the cell’s equator
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Mitosis
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eukaryotic nuclear division
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Mitotic spindle
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the array of spindle fibers that serve to divide the chromatids during nuclear division
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M phase
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mitosis; the phase of cell division in which the nucleus divides
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Polar fiber
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fibers that extend across a dividing cell form centrosome to centrosome
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S phase
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the second period of interphase during which replication of DNA occurs
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Spindle fiber
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one of the microtubules that extend across a dividing euykaryotic cell; assists in the movement of chromosomes
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Telophase
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the final stage of miosis during which a nuclear membrane forms around each set of new chromosomes
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Prophase
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the first stage of mitosis and meiosis- characterized by condensation of chromosomes
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