Proponents of eugenics sought to eliminate alleles for so-called undesirable traits by not allowing people with those traits to reproduce. Which of the following scenarios would prevent the elimination of these alleles?
A) Undesirable traits have high heritability.
B) Undesirable traits are caused by rare, recessive alleles.
C) Undesirable traits occur in large populations.
D) Undesirable traits result in decreased fitness.

Question

Quizplus · Accepted Answer

Undesirable traits caused by rare, recessive alleles would not be eliminated simply by preventing individuals with those traits from reproducing because carriers of the recessive allele (who do not express the trait) could still pass the allele to their offspring.

Proponents of Eugenics Sought to Eliminate Alleles for So-Called Undesirable