Eugenics

>Eugenics (/juːˈdʒɛnɪks/; from Greek εὐγενής eugenes 'well-born' from εὖ eu, 'good, well' and γένος genos, 'race, stock, kin') is a set of beliefs and practices that aims at improving the genetic quality of a human population by excluding (through a variety of morally criticized means) certain genetic groups judged to be less desirable and promoting other genetic groups judged to be superior. > wikipedia