eugenics

noun1

1. •
   A social philosophy or practice which advocates the improvement of human hereditary qualities through selective breeding, either by encouraging people with superior genetic qualities to reproduce (positive eugenics), or discouraging people with inferior genetic qualities from reproducing (negative eugenics), or by technological means.

   • In keeping with the goals of the new eugenics movement, McCulloch was claiming to offer scientific evidence of the incorrigibility of poor rural whites. — 2006