A separation in weak magnesium chloride solutions of nuclear material into two fractions with different purine and pyrimidine content; with a note on two unknown substances with a high absorption in the ultra-violet.
D002467:Cell Nucleus; D006801:Humans; D015636:Magnesium Chloride; D053858:Metabolic Networks and Pathways; D011687:Purines / Q000378:metabolism*; D011743:Pyrimidines / Q000378:metabolism*; D032413:Viola
D011687:Purines; D011743:Pyrimidines; D015636:Magnesium Chloride; C030986:pyrimidine; C030985:purine
CELL NUCLEUS; PURINES/metabolism; PYRIMIDINES/metabolism