Informational RNA sequences in early sea urchin embryos.

Animals Carbon Isotopes Chromatography, Gel DNA/biosynthesis Deoxyribonucleases Electrophoresis Embryo, Nonmammalian/analysis,metabolism Female Methanol Methylation Nucleic Acid Hybridization Ovum/analysis Phosphates/metabolism Phosphorus Isotopes Pronase RNA/analysis,biosynthesis,isolation & purification Sea Urchins Sulfuric Acids Thymidine/metabolism Tritium

Carbon Isotopes Phosphates Phosphorus Isotopes Sulfuric Acids Tritium RNA DNA Deoxyribonucleases Pronase Thymidine Methanol