In Vitro Oocyte Maturation TechniquesEmbryo Culture TechniquesOocytesOogenesisEmbryo, MammalianBlastocystEctogenesisEmbryonic DevelopmentFertilization in VitroChromosomesCulture TechniquesIncubatorsChromosome MappingTeratogensEmbryonic and Fetal DevelopmentMeiosisPregnancyEmbryo TransferZygoteCulture MediaEmbryo ImplantationCleavage Stage, OvumAbnormalities, Drug-InducedX ChromosomeEmbryo, NonmammalianChromosome BandingChick EmbryoCumulus CellsSperm Injections, IntracytoplasmicNeurulationChromosome AberrationsCryopreservationXenopus laevisGene Expression Regulation, DevelopmentalMetaphaseFertilizationSex Chromosomes