Answer:
Yes, Marfan syndrome is a genetic disorder. It is not a disease. It is caused by a mutation in fibrillin and is an autosomal dominant mutation. This means that if you have a Marfan causing mutation, you have Marfan, and you have a 50/50 chance of passing it on to any children you may have. Severity of Marfan can vary within a family, even though all affected family members have the same mutation. It can not skip generations.