title: Transitions in histone variants of the male pronucleus following fertilization and evidence for a maternal store of cleavage-stage histones in the sera urchin egg.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000502:physiology*; D002843:Chromatin / Q000502:physiology; D004625:Embryo, Nonmammalian / Q000502:physiology; D005260:Female; D005306:Fertilization; D014644:Genetic Variation; D006657:Histones / Q000235:genetics* / Q000502:physiology; D008297:Male; D010063:Ovum / Q000502:physiology*; D012617:Sea Urchins; D013094:Spermatozoa / Q000502:physiology*
chemical_list: D002843:Chromatin; D006657:Histones