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Understanding Cancer Series

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  • Posted: 01/28/2005
  • Reviewed: 09/01/2006

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Slide 5

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Noncoding Regions

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The massive DNA molecules known as chromosomes also have many noncoding regions located outside the genes. These contain large stretches of repetitive sequences. Some of the sequences in these locations are involved in the regulation of gene expression, and others simply act as spacers. Still other regions have functions as yet undiscovered.

Noncoding Regions