Cleavage Stage, OvumBlastomeresBlastocystOvumEmbryo Culture TechniquesEmbryo TransferEmbryonic DevelopmentVitrificationZygotePreimplantation DiagnosisEmbryo, NonmammalianFertilization in VitroEmbryo ImplantationCryopreservationPolar BodiesBlastulaEmbryo, MammalianOocytesUrochordataOvalbuminSea UrchinsOvum TransportPregnancyMorulaPregnancy RateFetal ViabilityMolecular Sequence DataGastrulaEmbryonic and Fetal DevelopmentFertilizationGene Expression Regulation, DevelopmentalGerm LayersAmino Acid SequenceXenopus laevisEmbryonic InductionXenopus ProteinsDNA CleavageBase SequenceAneuploidySperm Injections, IntracytoplasmicXenopusBody PatterningEctodermOctamer Transcription Factor-3Cell NucleusRNA, MessengerRNA CleavagePregnancy, MultipleIn Situ HybridizationZebrafishOogenesisTime FactorsMesodermZebrafish ProteinsSubstrate SpecificityHydrolysisCytoplasmEndopeptidasesTranscription FactorsCells, CulturedMorphogenesisPeptide FragmentsProtein Processing, Post-TranslationalIn Situ Hybridization, FluorescenceSignal TransductionTranscription, GeneticBinding SitesDNA-Binding ProteinsCell DifferentiationKineticsFurinCaspasesmRNA Cleavage and Polyadenylation FactorsSerine EndopeptidasesImmunoglobulin EAllergensProtein PrecursorsCell LineRecombinant ProteinsDNABronchial HyperreactivityNucleic Acid ConformationCaspase 3Escherichia coliRNA, CatalyticMutationApoptosisRespiratory HypersensitivityCysteine EndopeptidasesEndoribonucleasesAntigensElectrophoresis, Polyacrylamide GelRetrospective StudiesPeptide HydrolasesCholesterol Side-Chain Cleavage EnzymeSubtilisinsProteolysisAmyloid Precursor Protein SecretasesProtein Structure, TertiaryCatalysis