If a trait were primarily influenced by genetic variables, we would expect to see
A) adopted children who are more similar to their biological parents in the trait than to their adoptive parents.
B) adopted children who are more similar to their adoptive parents in the trait than to their biological parents.
C) strong similarities between adoptive and biological parents.
D) strong similarities between adoptive children and their adoptive siblings.

Question

Quizplus · Accepted Answer

If a trait is primarily influenced by genetic variables, we would expect adopted children to have more similarities to their biological parents in the trait than to their adoptive parents, as they share genetic material with their biological parents. This phenomenon is known as genetic heritability. Adoptive children may still show some similarities with their adoptive parents due to shared environmental influences, but these similarities would not be as strong as those with biological parents. Therefore, option A is the correct choice.

If a Trait Were Primarily Influenced by Genetic Variables, We