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A Powerful Tool in the Silencing Trade
The Scientist 2004, 18(6):12
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RNA interference (RNAi) is a type of posttranscriptional genetic regulation that occurs naturally in the cytoplasm to protect the cell against excess and foreign RNAs. Double-stranded RNA (dsRNA), an unusual type of nucleic acid encoded in viral genomes and transposable elements, triggers a process that regulates gene expression without touching the genome.
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