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13 Cards in this Set
- Front
- Back
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Gene |
a unit of heredity that consists of a segment of nucleic acid that codes for a functional unit of RNA or protein |
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Chromosome |
in a eurkaryotic cell, one of the structures in the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of DNA |
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Chromatin |
The substance which eukaryotic chromosomes are composed |
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chromatid |
one of two strands of a chromosome that becomes visible during meiosis or mitosis |
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Centromere |
the region of the chromosome that holds the two sister chromatids together during mitosis |
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Cell cycle |
the life cycle of a cell |
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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 division |
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mitosis |
in eukarotic 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 |
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spindle |
a network of microtubules that forms during mitosis and moves chromatids to the poles |
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centrosome |
an organelle that contains the centrioles and is the center of dynamic activity in mitosis |
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cancer |
a group of diseases characterized by uncontrolled growth and spread of 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 |
