According to the Swedish twin adoption study, _____ is the most heritable ability.
A) sexual orientation
B) general intelligence
C) mechanical ability
D) political affiliation

Question

Quizplus · Accepted Answer

The Swedish twin adoption study found that general intelligence (often measured by IQ tests) is highly heritable, with a heritability estimate of around 0.8. This means that around 80% of the variation in intelligence between individuals can be attributed to genetic factors. Other abilities, such as mechanical ability or political affiliation, have not been found to be as strongly influenced by genetic factors. Sexual orientation is also thought to have some genetic component, but the extent of heritability is less clear.

According to the Swedish Twin Adoption Study, _____ Is the Most