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COULD A ZYGOTE BE A HUMAN BEING?
2010
Bioethics
This paper re-examines the question of whether quirks of early human foetal development tell against the view (conceptionism) that we are human beings at conception. A zygote is capable of splitting to give rise to identical twins. Since the zygote cannot be identical with either human being it will become, it cannot already be a human being. Parallel concerns can be raised about chimeras in which two embryos fuse. I argue first that there are just two ways of dealing with cases of fission and
doi:10.1111/j.1467-8519.2008.00689.x
pmid:19076123
fatcat:4vm7hkp45ngo5n434akzriztge