cheria nucleolar aarr. enn. eiii. pii. ezz. aii. aii

molecular biologyil, mattu cheria nuclear aarenekalude (snrna) biogenesisil (parishkkaranam) pravartthikkunna oru noonn-coding rna (ncrna) thanmathrayaanu small nucleolar rna (snorna (snorna (snorna ennum ariyappedunnu). itharathilulla parishkkarikkunna rna sthithi cheiyunnathu snterna bayojenisisinte pradhana sthalamaaya eucariotic koshatthinte nucleolasilaanu. ithu oru cheria nucleolar rna (snorna) ennariyappedunnu, palappozhum 'guide rna' ennum ariyappedunnu.
eee drosophila-nirddishta snorna snornayude echu/aca boxes classile amgamaanu, koodaathe 1854,1937 varshangalil drosophila 18 ezz rrnaile yooridinukale seudoridinilekku parishkkarikkunnathin ithu kaaranamaakumenn pravachikkappedunnu.

