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Southern blot analysis of FRP genomic sequences in different species. After fractionation by agarose gel electrophoresis and transfer to filters, EcoRI-digested genomic DNAs were hybridized in the presence of either 50% or 35% formamide. Specimens were from the following species: λ, lamda phage; H, human; Mk, rhesus monkey; Mo, mouse; C, chicken; X, Xenopus laevis; D, Drosophila melanogaster; Y, yeast (S. cerevisiae).
