title: Differential effects of phenobarbital and 3-methylcholanthrene on rat hepatic ribosomal precursor RNA.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus / Q000201:enzymology; D002467:Cell Nucleus / Q000378:metabolism; D002499:Centrifugation, Density Gradient; D003593:Cytoplasm / Q000378:metabolism; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D008099:Liver / Q000187:drug effects / Q000378:metabolism* / Q000648:ultrastructure; D008297:Male; D008748:Methylcholanthrene / Q000494:pharmacology*; D008862:Microsomes, Liver / Q000187:drug effects / Q000378:metabolism; D009963:Orotic Acid / Q000378:metabolism; D010634:Phenobarbital / Q000494:pharmacology*; D012335:RNA, Ribosomal / Q000378:metabolism*; D051381:Rats; D013997:Time Factors
chemical_list: D012335:RNA, Ribosomal; D008748:Methylcholanthrene; D009963:Orotic Acid; D012321:DNA-Directed RNA Polymerases; D010634:Phenobarbital