title: Demonstration of a colcemid-sensitive attractive force acting between the nucleus and a center.
mesh_terms: D000818:Animals; D002455:Cell Division; D002467:Cell Nucleus / Q000187:drug effects*; D003078:Colchicine / Q000494:pharmacology*; D005260:Female; D005306:Fertilization; D008027:Light; D008297:Male; D008745:Methylation; D010063:Ovum / Q000187:drug effects; D012617:Sea Urchins; D012623:Seawater; D013094:Spermatozoa; D013997:Time Factors
chemical_list: D003078:Colchicine