Effects of purine and pyrimidine analogues on development of Rana pipiens.
D000818:Animals; D000963:Antimetabolites; D009696:Nucleic Acids; D011687:Purines / Q000494:pharmacology*; D011743:Pyrimidines / Q000494:pharmacology*; D011894:Rana pipiens
D000963:Antimetabolites; D009696:Nucleic Acids; D011687:Purines; D011743:Pyrimidines; C030986:pyrimidine; C030985:purine
NUCLEIC ACIDS; PURINES/effects; PYRIMIDINES/effects