title: Changes in the incorporation of different RNA precursors into the maternal liver during pregnancy.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus / Q000201:enzymology; D002467:Cell Nucleus / Q000201:enzymology; D003562:Cytidine / Q000378:metabolism*; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D005260:Female; D007700:Kinetics; D008099:Liver / Q000166:cytology / Q000201:enzymology / Q000378:metabolism*; D009963:Orotic Acid / Q000378:metabolism*; D049590:Postpartum Period; D011247:Pregnancy; D011270:Pregnancy, Animal; D012313:RNA / Q000096:biosynthesis*; D051381:Rats; D013997:Time Factors; D014316:Tritium; D014529:Uridine / Q000378:metabolism*
chemical_list: D014316:Tritium; D003562:Cytidine; D009963:Orotic Acid; D012313:RNA; D012321:DNA-Directed RNA Polymerases; D014529:Uridine