Q.Which is used to silence genes in RNA interference?

RNA interference is a biological process in which RNA molecules inhibit gene expression or translation by neutralising a targeted messenger RNA, distinct from the ordinary processing (intron removal, etc.) every transcript undergoes before translation. The simplified two-step pathway begins when a trigger RNA (double-stranded RNA or a primary microRNA transcript) is processed by the ribonuclease enzymes Dicer and Drosha into short interfering RNA (siRNA); the siRNA is then loaded into the RNA-induced silencing complex (RISC), unwinds to single-stranded form, and hy …