the rate of dna synthesis after gamma-irradiation was studied either by analysis of the steady-state distribution of daughter [ 3h ] dna in alkaline sucrose gradients or by direct assay of the amount of [ 3h ] thymidine incorporated into dna of fibroblasts derived from a normal donor ( lch882 ) and from down 's syndrome ( lch944 ) , werner 's syndrome ( ws1le ) and xeroderma pigmentosum ( xp2le ) patients with chromosomal sensitivity to ionizing radiation .
C0598312
dna synthesis
C0012854
dna