Autosomal dominant inheritance pattern

DS00200, DS00245, DS00367, DS00401, DS00531, DS00669, DS00706, DS00756, DS00786, DS00803, DS00831, DS00857, DS00903, DS00910, DS00955, DS01015, DS01185,DS00803_IM00991-r7_autosomaldominantthu.jpg

In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the nonsex chromosomes (autosomes). You need only one mutated gene to be affected by this type of disorder. A person with an autosomal dominant disorder — in this case, the father — has a 50 percent chance of having an affected child with one mutated gene (dominant gene) and a 50 percent chance of having an unaffected child with two normal genes (recessive genes).