title: Light microscope autoradiography of ribosomal DNA amplification in Xenopus laevis.
mesh_terms: D000818:Animals; D001345:Autoradiography; D002875:Chromosomes; D004247:DNA / Q000032:analysis* / Q000302:isolation & purification; D004261:DNA Replication; D005260:Female; D005796:Genes; D008722:Methods; D008970:Molecular Weight; D010053:Ovary / Q000032:analysis*; D012270:Ribosomes / Q000032:analysis*; D013997:Time Factors; D014316:Tritium; D014981:Xenopus
chemical_list: D014316:Tritium; D004247:DNA