title: Fertilization of zona-free rat eggs with mouse spermatozoa: the fate of sperm nuclei up to the first cleavage division.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000502:physiology*; D002970:Cleavage Stage, Ovum / Q000502:physiology*; D005260:Female; D005307:Fertilization in Vitro; D066298:In Vitro Techniques; D008297:Male; D051379:Mice / Q000502:physiology*; D008810:Mice, Inbred C57BL; D008808:Mice, Inbred CBA; D010063:Ovum / Q000502:physiology*; D051381:Rats / Q000502:physiology*; D011919:Rats, Inbred Strains; D013094:Spermatozoa / Q000502:physiology*; D015044:Zona Pellucida / Q000502:physiology*