title: Use of a DNA probe for mapping by electron microscopy the ribosomal sequences in ribosomal RNA precursors from duck cells.
mesh_terms: D000818:Animals; D001483:Base Sequence; D002499:Centrifugation, Density Gradient; D004247:DNA; D004372:Ducks; D004912:Erythrocytes / Q000032:analysis; D008854:Microscopy, Electron; D009690:Nucleic Acid Conformation; D009693:Nucleic Acid Hybridization; D012335:RNA, Ribosomal / Q000096:biosynthesis / Q000097:blood; D012265:Ribonucleotides / Q000032:analysis; D012270:Ribosomes / Q000032:analysis
chemical_list: D012335:RNA, Ribosomal; D012265:Ribonucleotides; D004247:DNA