Chikwama ichi chimagwiritsa ntchito gawo loyambira ndi chilinganizo chopangidwa ndi Foregene, chomwe chimatha kuchotsa kuyera kwapamwamba komanso kwapamwamba kwambiri kwa RNA yonse kuchokera kumaselo opangidwa mu 96, 24, 12, ndi 6-mbale zabwino. Chikwamacho chimapereka gawo loyeserera la DNA-loyeretsa, lomwe limatha kusiyanitsa supernatant ndi cell lysate, kumangirira ndikuchotsa genomic DNA. Ntchitoyi ndi yosavuta komanso yopulumutsa nthawi; Column yokhayo ya RNA imatha kumangiriza RNA mwanjira yapadera. Ziwerengero zambiri zitha kukonzedwa nthawi imodzi.
Dongosolo lonse ndilopanda RNase, kotero kuti RNA yoyeretsedwa isanyozedwe; Buffer RW1, Buffer RW2 chotsuka chomenyera chotetezera chimapatsa RNA yopanda mapuloteni, DNA, ion, ndi kuipitsa kwamagulu.