Rachkus, Y A Some characteristics of ribonucleic acids synthesized in loach embryogenesis. [electronic resource] - The Soviet journal of developmental biology - 222-9 p. digital Publication Type: Journal Article ISSN: 0049-173X Subjects--Topical Terms: AnimalsCarbon IsotopesCell Nucleolus--analysisCell Nucleus--analysisCentrifugation, Density GradientChromatin--analysisCytoplasm--analysisDNAEmbryo, Nonmammalian--metabolismFishes--embryologyMethodsMolecular WeightNucleic Acid HybridizationRNA--biosynthesis