The heritability of autism is close to 80 percent. What does this data indicate?
Answers
That most of the variation in susceptibility to autism is explained by genetic factors, although the environment also influencesCorrect
That autism is determined exclusively by diet
That autism is contagious
That there is no genetic influence at all
The high heritability shows that genes contribute an important weight to the appearance of the disorder, although no single gene causes it and environmental factors modulate its expression.