Irreversible denaturation and "thermal fractionation" as the basis of narrowing of mammalian DNA heterogeneity.
D000818:Animals; D002417:Cattle; D002845:Chromatography; D004247:DNA / Q000032:analysis*; D008322:Mammals; D009711:Nucleotides / Q000032:analysis*; D013696:Temperature; D013950:Thymus Gland / Q000032:analysis*
D009711:Nucleotides; D004247:DNA