title: Changes in the content of cyclic AMP and cyclic GMP during the development of Xenopus laevis.
mesh_terms: D000818:Animals; D002455:Cell Division; D000242:Cyclic AMP / Q000378:metabolism*; D006152:Cyclic GMP / Q000378:metabolism*; D004625:Embryo, Nonmammalian / Q000378:metabolism; D047108:Embryonic Development; D005260:Female; D010063:Ovum / Q000378:metabolism; D014981:Xenopus
chemical_list: D000242:Cyclic AMP; D006152:Cyclic GMP