title: Restriction analysis of the nontranscribed spacers of Xenopus laevis ribosomal DNA.
mesh_terms: D000818:Animals; D001483:Base Sequence; D004247:DNA / Q000032:analysis*; D004262:DNA Restriction Enzymes; D005796:Genes; D012335:RNA, Ribosomal / Q000096:biosynthesis*; D014981:Xenopus
chemical_list: D012335:RNA, Ribosomal; D004247:DNA; D004262:DNA Restriction Enzymes