RNA interference (RNAi) is a biological process in which small RNA molecules inhibit gene expression or translation by neutralizing targeted mRNA molecules. This mechanism is crucial for regulating various cellular processes, including development, defense against viruses, and the maintenance of genome stability. In the context of nematodes and tardigrades, RNAi plays a significant role in their biology, as it helps these organisms respond to environmental stressors and regulate their development.
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