Abstract

Generally, Preimplantation Genetic Diagnosis (PGD) is understood as a tool for embryonic selection involving therapy, enhancement or sex selection, yet other doors opened up by the technique, which entails far-reaching and controversial bioethical quandaries, are neglected. As a matter of fact, for some disabled parents, the best child possible may be a disabled one, and according to some arguments there might be good reasons to select for disability. Moreover, PGD encompasses polemical nuances related to producing saviour siblings, which also needs to be addressed and delimited. In this chapter I will analyze and discuss such paradigmatic contentious scenarios by displaying competitive arguments and visions so that the readers are able to get a better idea of the debate and take their own position about these issues. The approach as usual in these settings is not pacific although it is eloquent and illustrative of the historical and current discussion on PGD’ scopes.