[Free purines and mononucleotides in the frog embryo].
D000818:Animals; D001001:Anura; D009696:Nucleic Acids / Q000378:metabolism*; D011687:Purines
D009696:Nucleic Acids; D011687:Purines; C030985:purine
NUCLEIC ACIDS/metabolism; PURINES
Purines libres et mononucléotides dans l'embryon de batracien.