Autism is highly heritable, estimated at 85-90%, with underlying genetic factors potentially differing among affected children.

“the genes that are linked to autism there are many it's a very genetically determined disease not completely but heavily genetically the problem is like so many of the psychiatric disorders the genetic underpinnings it's a patchwork it's many different genes that all contribute a little bit in most cases”

“the heritability is estimated to be approximately 0.8 although some individuals will say even as high as 0.9”

“heritability is fundamentally trying to get it transmitted genetic variants that are going from parent to child and those de novo genetic events or new in the child and so their genetic aspects not included inheritability”

“we would say that that's 85 90% uh heritable it simply means that the underlying genes for each of them were inherited but they might have nothing to do with each other across all of those children”

“if um you see a hundred kids with autism and let's just pick a number that's somewhat conservative we would say that that's 85 to 90% uh heritable it simply means that the underlying genes for each of them were inherited but they might have nothing to do with each other across all of those children”

“genetics play a much larger role in autism risk than all other variables combined and account for an estimated 80 to 90% of the interindividual variability and autism risk.”