Effect of roentgen-ray radiation on the biosynthesis of nucleic acids and nucleic acid purines.
D009696:Nucleic Acids; D011687:Purines; D012106:Research; D014965:X-Rays
D009696:Nucleic Acids; D011687:Purines; C030985:purine
NUCLEIC ACIDS; PURINES; ROENTGEN RAYS