<prompt> Normal role of Micro RNA is:Gene RegulationRNA splicingInitiation of TranslationDNA conformational change  <response>: A i.e. Gene RegulationMicro-RNA mi-RNA is transcribed by RNA polymerase HQ as primary mi-RNA pri-mi-RNA. It is processed by 2 endoribonucleases of RNase III family:Drosha with DGCR8, in nucleus to precursor mi-RNA or pre-mi-RNA andDicer with TRBP in cytoplasm to nearly mature mi-RNA or small interfering RNAs si -RNAs or small temporal RNAs st RNAs paired with a sho RNA complementRNA helicase removes the complement and mature mi- RNA is incorporated into protein complexes to form RNA induce silencing complex RISC.By this process of gene silencing by RNA interference Nobel prize 2006 given to Andrew Fire Craig mello mi- RNA, st? RNA and si - RNA play a impoant role in gene regulation by inhibition of gene expression so translational processQ 