The heterogeneity of thymine methyl group origin in DNA pyrimidine isostichs of developing sea urchin embryos.
D000478:Alkylation; D000619:Aminohydrolases / Q000378:metabolism; D000818:Animals; D002247:Carbon Isotopes; D002454:Cell Differentiation; D004247:DNA / Q000096:biosynthesis*; D004447:Echinodermata; D004625:Embryo, Nonmammalian / Q000378:metabolism*; D066298:In Vitro Techniques; D008715:Methionine / Q000378:metabolism*; D013936:Thymidine / Q000378:metabolism*; D013941:Thymine / Q000096:biosynthesis*; D014166:Transferases / Q000378:metabolism; D014316:Tritium
D002247:Carbon Isotopes; D014316:Tritium; D004247:DNA; D008715:Methionine; D014166:Transferases; D000619:Aminohydrolases; D013941:Thymine; D013936:Thymidine