title: Adenine plus thymine and guanine plus cytosine enriched fractions of animal DNA's as indicators of polynucleotide homologies.
mesh_terms: D000225:Adenine / Q000032:analysis*; D000818:Animals; D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D006224:Cricetinae; D003596:Cytosine / Q000032:analysis*; D004247:DNA / Q000032:analysis*; D004622:Embryo, Mammalian; D006147:Guanine / Q000032:analysis*; D000882:Haplorhini; D015186:Hominidae; D006358:Hot Temperature; D066298:In Vitro Techniques; D051379:Mice; D009691:Nucleic Acid Denaturation; D010759:Phosphorus Isotopes; D011119:Polynucleotides; D013941:Thymine / Q000032:analysis*
chemical_list: D002247:Carbon Isotopes; D010759:Phosphorus Isotopes; D011119:Polynucleotides; D006147:Guanine; D003596:Cytosine; D004247:DNA; D000225:Adenine; D013941:Thymine