implicating this RNA as a new intermediate in the RNA silencing pathway. RNA silencing controls gene expression and antiviral defense by producing 21- to 24-nucleotide small interfering RNAs ...

The natural RNAi mechanism can be directed by either short interfering RNA (siRNA) or microRNA (miRNA). 1 There are four key steps in the RNAi pathway. When miRNA acts as the guide for RNAi ...

"Jumping genes" are one cause of mutations, but cells try and combat them with a specialized RNA called piRNA ... TEs but are also amplified during the silencing process. How this occurs is ...