title: Orientation of repeating units in Xenopus chromosomal ribosomal DNA: A test of a stochastic model for maintaining intraspecies homogeneity.
authors: S
authors: S
authors: Henikoff
authors: J
authors: J
authors: Heywood
authors: M
authors: M
authors: Meselson
mesh_terms: D000818:Animals; D002875:Chromosomes / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics*; D006824:Hybridization, Genetic; D015233:Models, Statistical; D012091:Repetitive Sequences, Nucleic Acid / Q000235:genetics; D014981:Xenopus / Q000235:genetics*
chemical_list: D004275:DNA, Ribosomal