title: The size of poly(A)-containing RNAs in Drosophila melanogaster embryos.
abstract: The size range of poly(A)-containing RNA from Drosophila melanogaster embryos has been estimated by hybridization with 3H-labeled poly(U) and subsequent fractionation on sucrose gradients. The median size of nuclear poly(A)-containing RNA is about 30 S (6000 nucleotides), and the median size of cytoplasmic poly(A)-containing RNA is about 17 S (1800 nucleotides). The relationship of these sizes to messenger RNA needed to code for protein and to the length of DNA contained in a chromomere is discussed.
mesh_terms: D000818:Animals; D002499:Centrifugation, Density Gradient; D004331:Drosophila melanogaster; D004625:Embryo, Nonmammalian; D008970:Molecular Weight; D009693:Nucleic Acid Hybridization; D011061:Poly A / Q000032:analysis; D011072:Poly U; D012313:RNA
chemical_list: D011061:Poly A; D011072:Poly U; D012313:RNA