title: Studies on the nucleotide arrangement in deoxyribonucleic acids. 13. Frequency and composition of purine isostichs in calf-thymus deoxyribonucleic acid.
mesh_terms: D000469:Alkaline Phosphatase; D000818:Animals; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D002848:Chromatography, DEAE-Cellulose; D004247:DNA / Q000032:analysis; D004926:Escherichia coli / Q000201:enzymology; D006834:Hydrazines; D006863:Hydrogen-Ion Concentration; D009711:Nucleotides / Q000032:analysis; D010710:Phosphates; D010744:Phosphoric Monoester Hydrolases; D011687:Purines / Q000032:analysis; D011743:Pyrimidines; D012911:Snakes; D013053:Spectrophotometry; D013950:Thymus Gland; D014466:Ultraviolet Rays; D014688:Venoms
chemical_list: D006834:Hydrazines; D009711:Nucleotides; D010710:Phosphates; D011687:Purines; D011743:Pyrimidines; D014688:Venoms; D004247:DNA; D000469:Alkaline Phosphatase; D010744:Phosphoric Monoester Hydrolases