What Color Eyes will your Children Have? For even more information about genetics and eye color, buy our book, When Will Broccoli Taste Like Chocolate, from Amazon here. Then you can show people why each of your kids has a 50% chance at blue eyes (or whatever results the calulator gives). The two gene model this calculator is based on.
Dystonia is a movement disorder in which a person's muscles contract uncontrollably. The contraction causes the affected body part to twist involuntarily, resulting in repetitive movements or abnormal postures. Dystonia can affect one muscle, a muscle group, or the entire body.
In addition, there are forms of dystonia that may have a genetic cause: 1  DYT1 dystonia is a rare form of dominantly inherited generalized dystonia that can be caused by a mutation in the DYT1 gene. 2  Dopa-responsive dystonia (DRD), also known as Segawaâs disease, is another form of dystonia that can have a genetic cause. DYT1 dystonia is a rare form of dominantly inherited generalized dystonia that can be caused by a mutation in the DYT1 gene. 2  This form of dystonia typically begins in childhood, affects the limbs first, and progresses, often causing significant disability.