title: A transcriptional function for repetitive ribosomal spacers in Xenopus?
mesh_terms: D000818:Animals; D005786:Gene Expression Regulation; D012318:RNA Polymerase I / Q000378:metabolism; D012335:RNA, Ribosomal / Q000235:genetics*; D012091:Repetitive Sequences, Nucleic Acid; D014158:Transcription, Genetic; D014982:Xenopus laevis
chemical_list: D012335:RNA, Ribosomal; D012318:RNA Polymerase I