In a message dated 96-01-15 18:19:20 EST, you write: >HC is transmitted >autosomal dominant (I hope that is the right english spelling), which >means that, if one of your parents has HC, you will get it as well This is not quite true. If one of your parents has Huntington Disease, you have a 50% chance of getting the disorder, not 100%. Delana Vaughan