DNA sequencing and gene structure.
D001483:Base Sequence; D055598:Chemical Phenomena; D002621:Chemistry; D004247:DNA / Q000235:genetics*; D005057:Eukaryotic Cells / Q000502:physiology; D005796:Genes; D006834:Hydrazines; D007763:Lac Operon; D008745:Methylation; D011387:Prokaryotic Cells / Q000502:physiology; D013463:Sulfuric Acid Esters
D006834:Hydrazines; D013463:Sulfuric Acid Esters; D004247:DNA; C007482:dimethyl sulfate