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Vol 10(1976) N 4 p. 772-777; E.R. Lozovskaya, S.I. Slezinger,A.A. Prokof'eva-Bel'govskaya Differences in AT- and GC-Base Pair Ratios in DNA of the Paracentromeric Heterochromatin of Chromosome 1 in Two Human Cell Types. I. Autoradiographic Analysis of the Incorporation of 3H-Labeled Thymidine and 3H-Labeled Deoxycytidine |