Methods for the Derivation of Human Embryonic Stem Cell Lines.- Morphology of Human Embryonic and Induced Pluripotent Stem Cell Colonies Cultured with Feeders.- Morphology of Human Embryonic Stem Cells and Induced Pluripotent Stem Cells Cultured in Feeder-Layer-Free Conditions.- Morphology of Undifferentiated Human Embryonic and Induced Stem Cells Grown in Suspension and in Dynamic Cultures.- Differentiation of Pluripotent Stems Cells in vitro: Embryoid Bodies.- Differentiation of Pluripotet Stems Cells in vivo: Teratoma Formation.- Immunostaining.- Karyotype Analysis of Human Embryonic Stem Cell and Induced Pluripotent Stem Cell Lines.- Method for the Derivation of Induced Pluripotent Stem Cells from Human Hair Follicle Keratinocytes.