title: Isolation and sequence organization of human ribosomal DNA.
mesh_terms: D001483:Base Sequence; D004247:DNA / Q000302:isolation & purification; D003854:Deoxyribonucleotides / Q000032:analysis; D004587:Electrophoresis, Agar Gel; D004720:Endonucleases; D005815:Genetic Code; D006801:Humans; D008854:Microscopy, Electron; D008970:Molecular Weight; D009693:Nucleic Acid Hybridization; D012335:RNA, Ribosomal; D012270:Ribosomes / Q000032:analysis* / Q000648:ultrastructure
chemical_list: D003854:Deoxyribonucleotides; D012335:RNA, Ribosomal; D004247:DNA; D004720:Endonucleases