USA HISTORY

Detailed explanation-1: -Eugenics researchers believed that by studying large human families in which a certain undesirable trait appeared, they could demonstrate a genetic pattern of inheritance for the trait, and such findings would justify policies aimed at removing the related genes from the population.

Detailed explanation-2: -Eugenicists worldwide believed that they could perfect human beings and eliminate so-called social ills through genetics and heredity. They believed the use of methods such as involuntary sterilization, segregation and social exclusion would rid society of individuals deemed by them to be unfit.

Detailed explanation-3: -Positive eugenics programs encouraged people considered to have good heredity to have more children, while negative eugenic programs attempted to discourage or prevent people considered to have poor heredity from having any children.