T8: Gene Expression Vocabulary

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DNA

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deoxyribonucleic acid; a chemical that contains an organism's information code; made of two twisted strands of sugar-phosphate molecules and nitrogen bases

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nucleus

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an organelle in plant and animal cells that contains DNA.

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gene

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a section of DNA on a chromosome that directs the making of a protein.

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chromosomes

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structures in the cell nucleus that contain hereditary material (DNA).

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mutation

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any permanent change in DNA or a chromosome of an organism

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beneficial

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Something that is helpful or advantageous for an organism

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harmful

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something that is negative or bad for an organism

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neutral

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something that is not good or bad for an organism

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DNA base pairs

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has four bases, a attaches to t, g attached to c

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Watson and Crick

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discovered the structure/shape of DNA