Is asperger's genetically passed down?

Partially perhaps: Scientists have long suspected that there are genetic and environmental components to Asperger syndrome.A specific gene for Asperger syndrome, however, has never been identified. Instead, the most recent research indicates that there are most likely a common group of genes whose variations or deletions make an individual vulnerable to developing asd. Environmental factors undoubtedly also play a role.

Sometimes: Some cases of asperger's disorder are inherited. In many cases there is a parent with an anxiety disorder or when one parent has an anxiety disorder and the other has a right hemisphere weakness. There are degrees of being affected so a parent may not be symptomatic of asperger's disorder.