Time sequence of DNA replication in heteropycnotic X.
D002875:Chromosomes / Q000378:metabolism*; D004247:DNA / Q000096:biosynthesis*; D005260:Female; D006801:Humans; D013936:Thymidine / Q000378:metabolism*; D014316:Tritium
D014316:Tritium; D004247:DNA; D013936:Thymidine