title: Retention of common nucleotide sequences in the ribosomal deoxyribonucleic acid of eukaryotes and some of their physical characteristics.
mesh_terms: D000663:Amphibians; D000818:Animals; D001001:Anura; D001483:Base Sequence; D005075:Biological Evolution; D001717:Birds; D002499:Centrifugation, Density Gradient; D003597:Cytosine Nucleotides / Q000032:analysis; D004247:DNA / Q000032:analysis*; D004269:DNA, Bacterial; D004279:DNA, Viral; D005399:Fishes; D005658:Fungi; D005796:Genes; D006150:Guanine Nucleotides / Q000032:analysis; D006801:Humans; D007313:Insecta; D007448:Invertebrates; D009235:Myxomycetes; D009693:Nucleic Acid Hybridization; D009711:Nucleotides / Q000032:analysis*; D010944:Plants; D012335:RNA, Ribosomal; D012270:Ribosomes; D014316:Tritium; D014461:Ultracentrifugation; D014714:Vertebrates
chemical_list: D003597:Cytosine Nucleotides; D004269:DNA, Bacterial; D004279:DNA, Viral; D006150:Guanine Nucleotides; D009711:Nucleotides; D012335:RNA, Ribosomal; D014316:Tritium; D004247:DNA