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18 Cards in this Set
- Front
- Back
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Gene Expression |
the activation or "turning on" of a gene that results in transcription and the production of mRNA |
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Lac Operon |
a gene system whose operator gene and three structural genes control lactose metabolism in E. Coli |
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Promoter |
DNA segment that is recognized by the enzyme RNA polymerase |
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Operator |
DNA segment that serves as a kind of switch by controlling access of RNA polymerase to the promoter
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Structural Genes |
Genes that code for polypeptides |
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Trp Operon |
Makes tryptophane, stops making tryptophane when white meat is ingested
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Intron |
Section of a structural gene that is transcribed, but not translated |
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Exon |
Section of a structural gene that when expressed, are transcribed and translated |
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Proto-oncogenes |
Regulates cell growth, cell division, and the ability to adhere to one another |
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Oncogenes |
Mutation in a proto-oncogene, gene that can cause uncontrolled cell proliferation |
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Tumor (toomah) |
Abnormal proliferation of cells that results from uncontrolled, abnormal cell division |
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Benign (B9) Tumor (Toomah) |
Tumor that is inactive or non-lethal |
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Malignant Tumor (Toomah) |
Tumor that is highly dangerous, usually causes cancer |
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Cancer |
Uncontrolled growth of cells that can invade other parts of the body |
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Tumor (Toomah) Suppression Gene |
Codes for proteins that prevent cell division from occurring too often |
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Metastasis |
Spread of cancer cells beyond their original site |
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Carcinogens |
Causes cancer |
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Kinds of Cancer Discussed |
Leukemia, Skin Cancer, Lung Cancer |
