Cystic fibrosis and Niemann-Pick Disease are common autosomal dominant disorders.

Name: Cystic fibrosis and Niemann-Pick Disease are common autosomal dominant disorders.
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Cystic fibrosis and Niemann-Pick Disease are actually autosomal recessive disorders, meaning an affected individual must inherit two copies of an abnormal gene (one from each parent) to develop the disease. Autosomal dominant disorders only require one copy of an abnormal gene to be inherited in order for the disease to be expressed.

Cystic Fibrosis and Niemann-Pick Disease Are Common Autosomal Dominant Disorders