Final answer:
Tourette's syndrome is mediated by a combination of genetic and environmental factors. Multiple genes, including the SLITRK1 and HDC genes, are involved. Environmental factors such as stress and infections can also influence the disorder.
Step-by-step explanation:
Tourette syndrome is a genetic disorder related to neurological problems. It is mediated by a combination of genetic and environmental factors. Multiple genes have been implicated as contributing to the development of Tourette's syndrome, including the SLITRK1 gene and the HDC gene. These genes are involved in the regulation of neurotransmitters and neuronal signaling in the brain. Environmental factors, such as stress and infections, can also influence the expression and severity of the disorder.