in the RNAi mechanism silencing of the mRNA forms due to the binding of RISC with mRNA my doubt - Biology - Biotechnology and its Applications

Question

in the RNAi mechanism silencing of the mRNA forms due to the
binding of RISC with mRNA my doubt from where the protein comes for
the formation of RISC

Manik Mishra · Accepted Answer

RNA silencing occurs due to complementary double stranded RNA
molecule which binds to and prevents translation of the mRNA The
source of this dsRNA could be from an infection by viruses having
RNA genomes or mobile genetic elements (transposons) which
replicate through an RNA intermediate

in the RNAi mechanism silencing of the mRNA forms due to the binding of RISC with mRNA .my doubt from where the protein comes for the formation of RISC