title: DNA synthesis in unfertilized sea urchin eggs can be turned on and turned off by the addition and removal of procaine hydrochloride.
mesh_terms: D000818:Animals; D002118:Calcium / Q000378:metabolism; D002455:Cell Division; D002875:Chromosomes / Q000187:drug effects; D004247:DNA / Q000096:biosynthesis*; D004140:Dinitrophenols / Q000494:pharmacology; D005260:Female; D005306:Fertilization; D010063:Ovum / Q000378:metabolism*; D011343:Procaine / Q000494:pharmacology*; D012617:Sea Urchins; D013936:Thymidine / Q000378:metabolism; D013997:Time Factors
chemical_list: D004140:Dinitrophenols; D011343:Procaine; D004247:DNA; D002118:Calcium; D013936:Thymidine