Precursors of cytoplasmic RNA in avian cell nucleus.
In nucleus of chick embryo four pre-rRNA of molecular weight of 3.43, 2.93, 2.36 and 1.87 X 10(6) were found in addition to the heterogeneous population of "giant" RNA molecules larger than 4.5 X 10(6) daltons, partially polyadenylated, with few methyl groups and numerous double-stranded regions.
D000818:Animals; D002467:Cell Nucleus / Q000378:metabolism*; D002499:Centrifugation, Density Gradient; D002642:Chick Embryo; D002846:Chromatography, Affinity; D003593:Cytoplasm / Q000378:metabolism; D003609:Dactinomycin / Q000494:pharmacology; D004591:Electrophoresis, Polyacrylamide Gel; D008745:Methylation; D008970:Molecular Weight; D012313:RNA / Q000378:metabolism*
D003609:Dactinomycin; D012313:RNA