title: Timing of the ribosomal gene replication in Tetrahymena pyriformis.
mesh_terms: D000818:Animals; D002455:Cell Division; D002499:Centrifugation, Density Gradient; D004247:DNA / Q000032:analysis; D004261:DNA Replication; D005796:Genes; D007700:Kinetics; D008938:Mitosis; D009693:Nucleic Acid Hybridization; D012335:RNA, Ribosomal / Q000096:biosynthesis*; D013769:Tetrahymena pyriformis / Q000254:growth & development / Q000378:metabolism*
chemical_list: D012335:RNA, Ribosomal; D004247:DNA