Twin studies suggest that the risk of having autism spectrum disorder is influenced by
A) chromosomes.
B) free-floating stress hormones.
C) heredity.
D) organic methyl molecules.

Question

Quizplus · Accepted Answer

Twin studies have consistently shown that autism spectrum disorder has a strong genetic component, indicating that heredity plays a significant role in determining an individual's risk of developing the disorder. While there may be other factors that contribute to the development of autism, such as environmental influences, the available evidence strongly supports a genetic basis for the disorder.

Twin Studies Suggest That the Risk of Having Autism Spectrum