5 s ribosomal rna in xenopus has been shown to be transcribed in vitro from 5 s rna genes that remain stably associated with required transcription factors through multiple rounds of transcription ( bogenhagen , d. f. , wormington , w. m. , and brown , d. d. ( 1982 ) cell 28 , 413-421 ) .
C0035701
ribosomal rna
C0035668
rna