Chromosome cycles turned on in unfertilized sea urchin eggs exposed to NH4OH.
D000818:Animals; D002875:Chromosomes / Q000187:drug effects*; D005260:Female; D005306:Fertilization; D006878:Hydroxides; D008297:Male; D008938:Mitosis; D010063:Ovum / Q000166:cytology / Q000187:drug effects*; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology*; D012617:Sea Urchins; D012623:Seawater; D013997:Time Factors
D006878:Hydroxides; D000644:Quaternary Ammonium Compounds