Türler, H Studies on the nucleotide arrangement in deoxyribonucleic acids. 13. Frequency and composition of purine isostichs in calf-thymus deoxyribonucleic acid. [electronic resource] - Biochimica et biophysica acta Dec 1969 - 456-65 p. digital Publication Type: Journal Article ISSN: 0006-3002 Subjects--Topical Terms: Alkaline PhosphataseAnimalsCattleChemical PhenomenaChemistryChromatography, DEAE-CelluloseDNA--analysisEscherichia coli--enzymologyHydrazinesHydrogen-Ion ConcentrationNucleotides--analysisPhosphatesPhosphoric Monoester HydrolasesPurines--analysisPyrimidinesSnakesSpectrophotometryThymus GlandUltraviolet RaysVenoms