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Cell Division

review of mitosis and cytokinesis

QuestionAnswer
division of the cytoplasm cytokinesis
division of the nucleus mitosis
problems of cell growing too large (reason why cells divide) DNA overload and poor exchange of materials in and out of cell
phase in mitosis when chromosomes become visible and nuclear membrane dissolves prophase
phase in mitosis when chromosomes line up in the center of the cell metaphase
structures only seen in animal cells that help during cell division centrioles
phase in mitosis when sister chromatids split and move to opposite sides of cell anaphase
phase when 2 cells start to form and nuclear envelope reappears telophase
center of chromosome that holds 2 sister chromatids together centromere
period of cell growth in cell cycle G1 and G2 phases
"resting" phase ; cell is NOT dividing or preparing to divide G0 phase
when DNA is copied in the cell cycle S phase
70% of cell cycle ; includes G1 , S and G2 (preparing to divide) interphase
thin microtubule fibers that pull chromosomes to the middle and pulls sister chromatids apart spindle fibers
uncontrolled cell growth & not following the 3 checkpoints cancer
cells with potential to become any cell in the body totipotent
cancerous masss of cells that CAN spread to other body parts malignant tumor
ways of treating cancer radiation , chemotherapy, surgically remove
cells that have not yet become specialized (undifferentiated) stem cells
process where a cell becomes specialized (gets a specific job) cell differentiation
when the 3 critical checkpoints happen end of G1 , end of G2 , middle of mitosis
programmed cell death ; self-destruction to prevent cancer apoptosis
Created by: cadetjt
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