title: Organization of the ribosomal RNA gene cluster in Lytechinus variegatus. Restriction analysis and cloning of restriction fragments.
mesh_terms: D000818:Animals; D004247:DNA; D004262:DNA Restriction Enzymes; D008854:Microscopy, Electron; D008970:Molecular Weight; D009838:Oligodeoxyribonucleotides / Q000032:analysis; D010957:Plasmids; D012335:RNA, Ribosomal; D012617:Sea Urchins / Q000032:analysis*
chemical_list: D009838:Oligodeoxyribonucleotides; D012335:RNA, Ribosomal; D004247:DNA; D004262:DNA Restriction Enzymes