carcinogen treatment of the ribonucleotide templates , poly ( ra ) ( see article ) oligo ( dt ) 12-18 , and poly ( rc ) ( see article ) oligo ( dg ) 12-18 , and carcinogen treatment of avian myeloblastosis virus dna polymerase did not alter the frequency of noncomplementary nucleotide incorporation .
C0035548
ribonucleotide
C0028630
nucleotide