title: Changes in the level of triphosphopyridine nucleotides during development of sea-urchin eggs (normal and lethal hybrids).
mesh_terms: D000818:Animals; D004447:Echinodermata; D004625:Embryo, Nonmammalian / Q000378:metabolism; D005314:Embryonic and Fetal Development; D005260:Female; D006824:Hybridization, Genetic; D009249:NADP / Q000378:metabolism*; D010063:Ovum / Q000378:metabolism*; D013997:Time Factors
chemical_list: D009249:NADP