Which of the following circumstances would indicate the greatest level of heritability of a trait?
A) Francois performs as well in school as the siblings with whom he was raised, even though he was adopted and is not genetically related to them.
B) D'artagnan prefers to watch movies on television, while his parents prefer to watch movies at a movie theater.
C) Luigi and his siblings are all about the same height.
D) Mario's results on a personality test are far more similar to his biological parents than they are to his adopted parents.

Question

Which of the following circumstances would indicate the greatest level of heritability of a trait?
A) ​Francois performs as well in school as the siblings with whom he was raised, even though he was adopted and is not genetically related to them.
B) ​D'artagnan prefers to watch movies on television, while his parents prefer to watch movies at a movie theater.
C) ​Luigi and his siblings are all about the same height.
D) ​Mario's results on a personality test are far more similar to his biological parents than they are to his adopted parents.

Quizplus · Accepted Answer

If Mario's results on a personality test are more similar to his biological parents than to his adopted parents, it would suggest that the trait has a high heritability because genetic factors are the primary explanation for the similarity in personality.

Which of the Following Circumstances Would Indicate the Greatest Level