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| period of a cells life when it carries out its normal metabolic activities and grows |
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happens during interphase
centrioles begin replicating |
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happens during interphase
DNA is replicated |
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Happens during interphase
final preparations for mitosis are completed and centrioles finish replicating |
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Definition
chromatin condenses
sister chromatids held together at centromere
nucleoli dissapear, centrosomes seperate from one another (act as focal point for mitotic spindle, 2 centrioles)
microtubule arrays are called asters |
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Term
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Definition
nuclear envelope fragments
kinetochores - special protein structures at each chromosomes centromere form from growing microtubles. draws chromosomes to the exact center/equator of the cell |
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Definition
second phase of mitosis
centrosomes at opposite poles of cell
centromeres precisely aligned at the equator of the spindle (metaphase plate) |
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| third and shortest phase of mitosis. anaphase begins abruptly as the centromeres of the chromosomes split simultaneously. each chromatid now becomes a chromosome. |
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| begins as soon as chromosonal movement stops. new nuclear envelope forms, spindle breaks down and dissappears |
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Definition
| completes division of cell into two identical daughter cells |
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