is mnd genetic
The remaining 90 % of people with MND are the only affected person in their family and are said to have âsporadicâ MND. People with familial MND have the disorder because of a mutation in a gene. A mutation is an error in the genetic code which causes a gene to work abnormally.People with genetic mutations can pass these onto their children.he remaining 90 % of people with MND are the only affected person in their family and are said to have âsporadicâ MND. People with familial MND have the disorder because of a mutation in a gene. A mutation is an error in the genetic code which causes a gene to work abnormally.