title: DNA metabolism during pachytene in relation to crossing over.
mesh_terms: D002499:Centrifugation, Density Gradient; D002843:Chromatin; D003434:Crossing Over, Genetic; D004247:DNA / Q000096:biosynthesis / Q000378:metabolism*; D004260:DNA Repair; D006918:Hydroxyurea / Q000494:pharmacology; D008540:Meiosis; D009940:Organoids / Q000378:metabolism; D010944:Plants; D013936:Thymidine / Q000378:metabolism; D014316:Tritium; D014498:Uracil / Q000494:pharmacology
chemical_list: D002843:Chromatin; D014316:Tritium; D014498:Uracil; D004247:DNA; D013936:Thymidine; D006918:Hydroxyurea