title: Studies on the structures of ribosomal RNA's and their precursors from rat liver.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus; D002942:Circular Dichroism; D004589:Electrophoresis, Disc; D008099:Liver / Q000166:cytology; D008274:Magnesium; D008297:Male; D009690:Nucleic Acid Conformation; D010179:Pancreas / Q000201:enzymology; D012313:RNA / Q000032:analysis; D012335:RNA, Ribosomal / Q000032:analysis*; D051381:Rats; D011919:Rats, Inbred Strains; D012260:Ribonucleases; D014466:Ultraviolet Rays
chemical_list: D012335:RNA, Ribosomal; D012313:RNA; D012260:Ribonucleases; D008274:Magnesium