Below is an instruction from Human. Write a response.
    ### Instruction:
    Is Amyotrophic lateral sclerosis inherited ?
    ### Response:
    Is amyotrophic lateral sclerosis (ALS) inherited? About 90-95% percent of cases of ALS are not inherited and occur in individuals with no history of the condition in their family. The remaining 5-10% of cases are familial, and are thought to be caused by mutations in any one of several genes.
    