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biology vocab #5
| word | definition |
|---|---|
| cell cycle | the life of a cell; in eukaryotes, it consists of a cell-growth period in which DNA is synthesized and a cell-division period in which mitosis takes place |
| interphase | part of the cell cycle which consists of the period between two mitotic of meiotic divisions during which the cell grows, copies in DNA, and synthesizes protein |
| mitosis | in eukaryotic cells, a process of cell division that forms two nuclei, each of which has the same # of chromatids |
| centromere | the region of the chromosome that holds the 2 sister chromatids together in mitosis |
| cytokinesis | the division of the cytoplasm of a cell; cytokinesis follows the division of the cell's nucleus by mitosis or meiosis |
| centrioles | cell structures found in animal cells that help initiate the development of the spindle for mitosis |
| spindle | a network of microtubules which appears during mitosis; it helps guide the chromatids to the ends of the cell |