Localization and characterization of the ribosomal RNA cistrons in Sciara coprophila.

Animals Anura Carbon Isotopes Centrifugation, Density Gradient Culture Techniques DNA/isolation & purification Diptera Genetic Code Hybridization, Genetic Mice Molecular Biology Mutation Nucleic Acid Hybridization RNA/isolation & purification RNA, Ribosomal/isolation & purification Ribosomes Salivary Glands Sex Chromatin Sex Chromosomes Thymidine/metabolism Tritium Uridine/metabolism

Carbon Isotopes RNA, Ribosomal Tritium RNA DNA Thymidine Uridine