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Biology 1/14/09
Ms. Welch's Biology Mitosis Vocabulary
| Question | Answer |
|---|---|
| The life cycle of a cell. This includes both interphase and mitosis/cytokinesis. Interphase is broken into G1, S, and G2 phases. | Cell Cycle |
| Identical copies of a chromosome. One goes to each daughter cell during cell division. | Sister Chromatids |
| Division of the nucleus in a eukaryote | Mitosis |
| Division of the cell's cytoplasm to produce two daughters | Cytokinesis |
| Region that joins the two sister chromatids before their seperation | Centromere |
| Region on chromatid to which the spindle microtubule attaches | Kinetochore |
| Network of mirotubules that extend from the poles of the dividing cell to each chromatid. These microtubules shorten and help to pull the chromatids apart during anaphase. | Spindle |
| this ring (made of the protein actin - one component of the cytoskeleton) forms around the midline of an animal cell following mitosis. The ring contracts, pinching the cell's membrane inward, thus initiating cytokenesis. | Contractile ring |
| The infolding in the cell membrane produced by the contractile ring. | Clevage furrow |
| The new cell wall that forms during the cytokinesis of plant cells. This develops into a full cell wall that seperates the daughter cells. | Cell Plates |