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13 Cards in this Set
- Front
- Back
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Gene |
the most basic physical unit of heredity a segment of nudiec acids that codes for a functional unit of RNA and or protein |
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Chromosome |
in eukaryotic cell one of the structures in the nucleus that are made up of DNA and protein |
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Chromatin |
the substance that composes eukaryotic chromosomes;it consists of specific proteins,DNA,and small amounts of RNA |
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Chromatid |
one of the two strands of a chromosome that become visible during meiosis or mitosis |
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Centromere |
the region of the chromosome that holds the two sister chromatids together during mitoasis |
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Cell Cycle |
the life cycle 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 |
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Interphase |
the period of the cell cycle during which activities such as cell growth and protein synthesis occur without visible signs of cell divison |
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Mitosis |
in eukaryotic cells,a process of cell division that forms two new nuclei,each of which has the same number of chromosomes |
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Cytokinesis |
the division of the cytoplasm of a cell;cytokinesis follows the division of the cells nucleus by mitosis or meiosis |
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Spindle |
a network of microtubules that forms during mitosis and moves chromatids to the poles |
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Centromere |
the region of the chromosome that holds the two sister chromatids together during mitosis |
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Cancer |
a type of disorder of cell growth that results in invasion and destruction of surrounding healthy tissue by abnormal cells |
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Tumor |
a growth that arises from normal tissue but that grows abnormally in rate and structure and lacks a function |
