title: Clustering of transfer RNA genes of Xenopus laevis.
mesh_terms: D000818:Animals; D001483:Base Sequence; D002478:Cells, Cultured; D002499:Centrifugation, Density Gradient; D004247:DNA / Q000032:analysis / Q000097:blood; D004590:Electrophoresis, Paper; D004912:Erythrocytes / Q000032:analysis; D005796:Genes; D007668:Kidney / Q000032:analysis; D008715:Methionine; D008954:Models, Biological; D008970:Molecular Weight; D009691:Nucleic Acid Denaturation; D009693:Nucleic Acid Hybridization; D010761:Phosphorus Radioisotopes; D012343:RNA, Transfer / Q000032:analysis*; D012265:Ribonucleotides / Q000032:analysis; D013056:Spectrophotometry, Ultraviolet; D013462:Sulfur Radioisotopes; D013997:Time Factors; D014316:Tritium; D014633:Valine; D014981:Xenopus / Q000378:metabolism*
chemical_list: D010761:Phosphorus Radioisotopes; D012265:Ribonucleotides; D013462:Sulfur Radioisotopes; D014316:Tritium; D004247:DNA; D012343:RNA, Transfer; D008715:Methionine; D014633:Valine