Forums General chat Autism is it in the genes? Reply To: Autism is it in the genes? February 9, 2018 at 10:52 am #362 don 18 Posts Yes autism is genetic as traits are exhibited at ages too young to have been learned and the autistic spectrum is wide and encompasses almost unnoticeable behaviour traits to very noticeable and sometimes challenging behaviours. Why not get in touch with one of the specialist autism groups and ask for their input/research.