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AP Biology: Mitosis Flashcards

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5430434659G1 PhaseFirst stage of interphase in which cell grows and performs its normal functions. Cell is diploid.0
5430434660G0 PhaseCell is performing its normal functions, but has left the cell cycle and is not dividing.1
5430434661S PhaseThe synthesis phase of the cell cycle; the portion of interphase during which DNA is replicated.2
5430434662G2 PhaseLast stage of interphase in which cell grows and performs its normal functions. Cell is diploid.3
5430434663InterphaseCell grows, performs its normal functions, and prepares for division; consists of G1, S, and G2 phases4
5430434664ProphasePhase of mitosis in which chromosomes condense, nuclear membrane disappears, nucleolus disappears, and spindle fibers begin to form.5
5430434665MetaphasePhase of mitosis in which spindle fibers help chromosomes line up on the midline of the cell.6
5430434666AnaphasePhase of mitosis in which the chromosomes separate and move to opposite ends of the cell.7
5430434667TelophasePhase of mitosis during which chromosomes uncoil, a nuclear envelope returns around the chromatin, and a nucleolus becomes visible in each daughter cell"8
5430434668CytokinesisAt the end of telophase, actin fibers form an equator around the cell and contract, separating the cytoplasm into two daughter cells.9
5430434669CentrioleA paired cluster of microtubules near the nucleus in animal cells. This organelle organizes spindle fibers during mitosis.10
5430434670CentromereRegion of a chromosome where the two sister chromatids attach to one another. Contains the kinetochore.11
5430434671KinetochoreA specialized region on the centromere that links each sister chromatid to the mitotic spindle.12
5430434672Spindle FibersMade of microtubules that connect centrioles to kinetochores of chromosomes and that separate sister (mitosis) or homologous (meiosis) chromosomes during cell division13
5430434673ChromosomeA threadlike, gene-carrying structure found in the nucleus. Each chromosome consists of one very long DNA molecule and associated proteins.14
5430434674ChromatidOne of two identical "sister" parts of a duplicated chromosome.15
5430434675HaploidA cell with only one copy of each chromosome.16
5430434676DiploidA cell with two copies of each chromosome.17
5430434677TetraploidA cell with four copies of each chromosome.18
5430434678G1 CheckpointChecks the cell before going into the S phase for damage.19
5430434687cancerDisorder in which some of the body's cells lose the ability to control growth; A disease in which the body cells grow & divide uncontrollably, damaging the parts of the body around them.20
5430434688metastisisspread of cancer cells21
5430434689G2 CheckpointChecks to make sure that the DNA is copied correctly before going into the M phase22
5430434691M phaseMakes sure that all the spindle is properly connected to the kinetochore.23

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