is down syndrome a dominant autosomal
These are genetic diseases that are due to an abnormal number or structure of the chromosomes. A frequent chromosome anomaly is Down syndrome. These are genetic diseases that are due to a mutation(s) in only 1 gen. They can be inherited in different ways: autosomal dominant, autosomal recessive, X-linked or Y-linked. Frequent monogenic diseases are cystic fibrosis, thalassemia and fragile X syndrome.