title: Gene transfer by direct pronuclei microinjection.
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000166:cytology*; D002467:Cell Nucleus / Q000648:ultrastructure*; D002478:Cells, Cultured; D005260:Female; D005796:Genes; D005818:Genetic Engineering / Q000379:methods*; D006652:Histological Techniques; D051379:Mice; D008845:Microinjections / Q000295:instrumentation / Q000379:methods; D009865:Oocytes / Q000166:cytology; D010060:Ovulation; D013480:Superovulation