Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes Marfan Syndrome ?
    ### Response:
    Marfan syndrome is a genetic disorder. A mutation, or change, in the gene that controls how the body makes fibrillin causes Marfan syndrome. Fibrillin is a protein that plays a major role in your body's connective tissue.
                
Most people who have Marfan syndrome inherit it from their parents.
    