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| Modern Genetic Analysis Chapter 2. The Structure of Genes and Genomes The Nature of Genes Figure 2-4. Generalized gene structure in prokaryotes and eukaryotes. The coding region (dark green) is the region that contains the information for the structure of the gene product (usually a protein). The adjacent regulatory regions (lime green) contain sequences that are recognized and bound by proteins that make the gene's RNA and by proteins that influence the amount of RNA made. Note that in eukaryotic genes the coding region is often split by one or more noncoding introns (pale green).

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