Kev hloov pauv yog qhov ntws ntawm cov ntaub ntawv keeb kwm ntawm DNA mus rau RNA. Ntawd yog, cov txheej txheem ntawm kev sib txuas RNA catalyzed los ntawm RNA polymerase nrog ib qho strand ntawm ob stranded DNA (template strand yog siv rau transcription thiab coding strand tsis yog siv rau transcription) raws li tus qauv thiab plaub ribonucleotides a, u, C thiab G raws li. raw khoom.
