BlastocystEmbryonic DevelopmentMorulaEmbryo, MammalianEmbryo ImplantationZygotePreimplantation DiagnosisEmbryonic and Fetal DevelopmentPregnancyOocytesGene Expression Regulation, DevelopmentalBlastomeresCleavage Stage, OvumEmbryo, NonmammalianEmbryo Culture TechniquesFertilization in VitroChick EmbryoEctogenesisEmbryo TransferEmbryo Implantation, DelayedCryopreservationEmbryo LossCulture TechniquesAneuploidySex PreselectionSperm Injections, IntracytoplasmicParthenogenesisBlastocyst Inner Cell MassMice, Inbred ICRCloning, OrganismGastrulaUterusSuperovulationFallopian TubesMice, Inbred StrainsRNA, MessengerNuclear Transfer TechniquesFertilizationPregnancy RateIn Situ HybridizationTrophoblastsTime FactorsMice, Inbred CBA