title: The molecular basis for length heterogeneity in ribosomal DNA from Xenopus laevis.
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D002874:Chromosome Mapping; D002999:Clone Cells; D004247:DNA / Q000378:metabolism; D004262:DNA Restriction Enzymes; D004926:Escherichia coli / Q000201:enzymology; D008854:Microscopy, Electron; D008970:Molecular Weight; D009690:Nucleic Acid Conformation; D009691:Nucleic Acid Denaturation; D009693:Nucleic Acid Hybridization; D009695:Nucleic Acid Renaturation; D010957:Plasmids; D012270:Ribosomes / Q000378:metabolism*; D014981:Xenopus
chemical_list: D004247:DNA; D004262:DNA Restriction Enzymes