Question

Family and twin studies examining the rates of autism spectrum disorder have provided compelling evidence for a genetic influence in the development of the condition. in fact, the concordance rate of autism spectrum disorder was ______ in identical twins

Answer 1

In fact, the concordance rate of autism spectrum disorder was twice in identical twins that of non-twin siblings.

It has been shown that genetic has a huge influence on the development of autism spectrum disorder and that autism in identical twins was 13 times that of the general population. This suggest that environmental factors in the womb are the major factors that contribute.