Term
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Definition
| Period when a cell carries out normal metabolic activities and grows. DNA in the form of chromatin. |
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Term
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Definition
G1 - cell grow and centriole replication begins.
S - DNA replicates.
G2 - final preparations before cell division. Checkpoints before mitosis. Centrosome replicates. |
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Term
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Definition
Chromatin coils and condenses forming chromosomes (sister chromatids), held together at the centromere.
Nucleoli disappears. |
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Term
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Definition
Enzyme breaks down nuclear membrane.
Centrosomes migrate to opposite ends and produce spindle fibers. |
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Term
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Definition
Spindle fibers are completely attached to the centromeres and pull on the chromosomes.
Sister chromatids lined up at the metaphase plate. |
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Term
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Definition
| Sister chromatids separate and are pulled toward opposite sides (now called daughter chromosomes). |
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Term
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Definition
| Daughter chromosomes reach the poles of the cell becoming uncondensed and two nuclear membranes begin to form around each set of daughter chromosomes. |
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Term
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Definition
| Cell pinches in half from the center and forms two new daughter cells. Division of the cytoplasm. |
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Definition
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Term
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Definition
| Assembly of lengthened microtubules. |
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Term
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Definition
| Kinetochore microtubules attach to kinetochores at the centrosome and nonkinetichore microtubules slide past eachother forcing the poles apart. |
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Term
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Definition
| Microtubule arrays that extend from the centrosome. |
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Term
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Definition
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Term
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Definition
| Chromosome pairs (one from each parent) |
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Term
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Definition
| Identical copy of a chromosome joined together at the centromere. |
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Term
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Definition
| Separated sister chromatids. |
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Term
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Definition
| Region of a chromosome where sister chromatids are joined. |
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Term
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Definition
| region near the nucleus that contains paired centrioles. |
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