a tandemly arranged cluster of 55 rna-like sequences in the middle of ribosomal 26s to 28s rrnas from divergent eukaryotic organisms raises the possibility that the larger ribosomal rnas were built up , at least in part , by gene amplification events and suggests an intriguing evolutionary relationship between the 55 rrna and the larger rrna molecules .
C0035553
ribosomal
C0035701
rrna