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14 Cards in this Set
- Front
- Back
chromatin
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IN INTERPHASE
thread-like not visible with a light microscope combination of DNA & proteins that make up eukaryotic chromosomes/contents of the nucleus |
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Why must the nuclear membrane dissolve at the end of prophase?
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so the sister chromatids can line up in the center of the cell
so the SC can move to opposite poles so it ends up with 2 nuclei in telophase |
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Centrioles
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development of spindle fibers in cell division
cylindrical organelle near nucleus (animal cells) in pairs |
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Cancer A
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No response to growth factors
Signals/cell regulatory checkpoints don't work (some make their own growth factors) |
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Cancer B
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tumors
Benign tumors remain in place of origin-non-cancerous; may become cancerous in some cells |
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Cancer C
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-defect gene p53 stops the cell cycle if the DNA is damages, causing the cell to divide uncontrollably
-defect gene p27 stops entry into the S phase if the cell is not ready (may not work in some cancer) |
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Metastasis
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spread of cancer cells beyond their original site
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Cyclins
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protein signals
regulate cell cycle may not work in some cancerous cells |
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Apopsis
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destruction of the cell
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body cells (Somatic)
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46 chromosomes from humans
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sex cells (Gametes)
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23 chromosomes from humans
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centrioles
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helps create spindle fibers
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chromosomes
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Thickened structure within the nucleus containing genetic information
made of DNA coiled around proteins |
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Malignant tumors
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can spread toother parts of the body
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