title: Individuality and human beginnings: a reply to David DeGrazia.
abstract: The author argues that individuality does not require indivisibility and that twinning can be explained as the reprogramming of blastomeres that already have begun to differentiate in accordance with the needs of the unified organism that originates at conception.
authors: Georgetown University, USA.
authors: Alfonso
authors: A
authors: Gómez-Lobo
mesh_terms: D033421:Beginning of Human Life; D019976:Cloning, Organism / Q000941:ethics; D033041:Embryo Research / Q000941:ethics*; D053595:Embryonic Stem Cells; D006801:Humans; D028723:Personhood