title: Amplification and evolution of deoxyribonucleic acid sequences expressed as ribonucleic acid.
mesh_terms: D000818:Animals; D001483:Base Sequence; D001921:Brain / Q000196:embryology; D001923:Brain Chemistry; D002247:Carbon Isotopes; D002417:Cattle; D002478:Cells, Cultured; D004247:DNA / Q000032:analysis / Q000096:biosynthesis / Q000302:isolation & purification; D004277:DNA, Single-Stranded / Q000302:isolation & purification; D004355:Drug Stability; D005260:Female; D007668:Kidney / Q000032:analysis / Q000378:metabolism; D008099:Liver / Q000032:analysis / Q000196:embryology; D009693:Nucleic Acid Hybridization; D009711:Nucleotides / Q000032:analysis; D011247:Pregnancy; D012313:RNA; D013936:Thymidine / Q000378:metabolism; D013950:Thymus Gland / Q000032:analysis; D014158:Transcription, Genetic; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D004277:DNA, Single-Stranded; D009711:Nucleotides; D014316:Tritium; D012313:RNA; D004247:DNA; D013936:Thymidine