What do you call the study of racial degeneration?

The study of racial degeneration is historically referred to as “dysgenics.” Dysgenics examines the accumulation of deleterious genes and traits in a population, which was often discussed in a pseudoscientific context during the early 20th century and associated with eugenics. It is important to note that modern genetics and contemporary science reject the concepts and methodologies that were historically used in dysgenics, recognizing them as scientifically flawed and ethically problematic.