this phenotype was shown to be the result of a slow rate of processing of , and a deficiency in the amount of , the immediate precursor to 25s ribosomal rna ( the large rna of the 60s subunit ) in the sequence of events constituting the production of mature ribosomal rnas from the primary transcript of the ribosomal deoxyribonucleic acid , the precursor ribosomal rna molecule .
C0035553
ribosomal
C0035701
ribosomal rna