 These mice displayed autism-related behavioral deficits including impaired social interaction, reduced ultrasonic vocal communication, and increased repetitive behavior (self-grooming).In general, idic(15) occurs de novo but the parents must be karyotyped to make sure it is not inherited, mostly because this will affect the course of genetic counseling given to the family.If the abnormality is found prenatally and one of the parents harbour the marker, the child has a chance of not carrying the mutation.