A post-transcriptional mechanism of gene-regulation/silencing mediated by small RNAs (siRNA)

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Can encoding of miRNAs in introns not cause dysregulation of gene expression?

For example, consider a gene X which has an intron which encodes a miRNA that downregulates expression of another gene Y. When the gene X is translated, this miRNA will appear as a byproduct of ...
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Which fractions are enriched for siRNA cleavage activity by comparing electrophoresis?

Size exclusion column chromatography was used to separate the proteins in a Drosophila cell lysate to attempt to identify the protein complex responsible for processing long dsRNA into siRNAs. SDS-...
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RNA interference and the former Petunias experiment >

I'm having problems trying to understand how RNA interference works. From what I understood, in simple terms there is this dsRNA which is fragmented into siRNA by the enzyme called Dicer, and those ...