the positions of the 3'-ends of mature 26s rrna , pre-26s rrna and 35s pre-rrna were localized within this sequence by hybridization of the purified rna species to be selected dna fragments , followed by s1 nuclease treatment of the hybrid and a precise sizing of the rna-protected dna fragments on sequencing gels .
C0012854
dna
C0000702
a