Purine and pyrimidine derivatives in the acid-soluble fraction of animal tissues and cell nuclei.
D000818:Animals; D002467:Cell Nucleus; D009705:Nucleosides / Q000032:analysis*; D009711:Nucleotides / Q000032:analysis*; D011687:Purines / Q000032:analysis*; D011743:Pyrimidines / Q000032:analysis*
D009705:Nucleosides; D009711:Nucleotides; D011687:Purines; D011743:Pyrimidines; C030986:pyrimidine; C030985:purine
NUCLEOSIDES AND NUCLEOTIDES/determination; PURINES/determination; PYRIMIDINES/determination