BlastocystEmbryonic DevelopmentMorulaEmbryo, MammalianEmbryo ImplantationEmbryonic and Fetal DevelopmentZygotePreimplantation DiagnosisPregnancyEmbryo, NonmammalianGene Expression Regulation, DevelopmentalOocytesChick EmbryoBlastomeresCleavage Stage, OvumFertilization in VitroEmbryo Culture TechniquesEctogenesisEmbryo LossEmbryo TransferCryopreservationGastrulaEmbryo Implantation, DelayedCulture TechniquesSperm Injections, IntracytoplasmicIn Situ HybridizationCloning, OrganismNuclear Transfer TechniquesPregnancy RateBlastocyst Inner Cell MassParthenogenesisZebrafishEctodermRNA, MessengerEmbryo DispositionMesodermBody PatterningUterusSuperovulationTime FactorsMice, Inbred ICRFertilizationAneuploidyMorphogenesis