Autosomal dominant is a type of genetic inheritance pattern where only one copy of a mutated gene from either parent can cause a trait or disorder to be expressed. This means that if a parent carries the mutated gene, there is a 50% chance that each child will inherit the condition. In this pattern, the gene responsible for the trait is located on one of the autosomes, which are the non-sex chromosomes. Common examples of autosomal dominant disorders include Huntington's disease and Marfan syndrome, both of which can significantly impact an individual's health and development.