title: Biological activity of double-stranded ribonucleic acid fragments.
mesh_terms: D000818:Animals; D002499:Centrifugation, Density Gradient; D004591:Electrophoresis, Polyacrylamide Gel; D051379:Mice; D008970:Molecular Weight; D010408:Penicillium chrysogenum; D010942:Plant Viruses; D012367:RNA, Viral
chemical_list: D012367:RNA, Viral