title: Preparation, molecular weight, base composition, and secondary structure of giant nuclear ribonucleic acid.
mesh_terms: D000225:Adenine / Q000032:analysis; D000818:Animals; D001202:Ascitic Fluid; D002467:Cell Nucleus / Q000032:analysis; D002499:Centrifugation, Density Gradient; D002845:Chromatography; D003596:Cytosine / Q000032:analysis; D004121:Dimethyl Sulfoxide; D005557:Formaldehyde; D008297:Male; D008722:Methods; D008854:Microscopy, Electron; D008970:Molecular Weight; D009374:Neoplasms, Experimental; D009690:Nucleic Acid Conformation; D009691:Nucleic Acid Denaturation; D010759:Phosphorus Isotopes; D011134:Polysaccharides; D012313:RNA / Q000032:analysis* / Q000302:isolation & purification; D051381:Rats; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature; D013997:Time Factors; D014316:Tritium; D014461:Ultracentrifugation; D014498:Uracil / Q000032:analysis
chemical_list: D010759:Phosphorus Isotopes; D011134:Polysaccharides; D014316:Tritium; D005557:Formaldehyde; D014498:Uracil; D012313:RNA; D003596:Cytosine; D000225:Adenine; D004121:Dimethyl Sulfoxide