While it is relatively easy to define what a hurricane or earthquake is, defining a drought is more subjective. Droughts do not have the immediate effects of floods, but sustained droughts can cause economic stress throughout an area. The word drought has various meanings, depending on a person's perspective.
For the software package, see Partition function for Interacting RNAs. Piwi-interacting RNA (piRNA) is the largest class of small non-coding RNA molecules expressed in animal cells. piRNAs form RNA-protein complexes through interactions with piwi proteins.
RNA interference (RNAi) is a natural process cells use to turn down, or surpress the activity of specific genes. The process was discovered in the 1990âs and additional research in the area led to Drs.Fire and Mello winning a Nobel Prize for their work in 2006.bout RNAi. RNA interference (RNAi) is a natural process cells use to turn down, or surpress the activity of specific genes. The process was discovered in the 1990âs and additional research in the area led to Drs. Fire and Mello winning a Nobel Prize for their work in 2006.