sentence2_structure: A person<>affected<>by an autosomal dominant disorder$$$A person affected by an autosomal dominant disorder<>has<>one mutated allele
sentence1: Because alkaptonuria is an autosomal recessive disorder, an individual must inherit two mutated alleles to have the disease.
sentence2: A person affected by an autosomal dominant disorder has one mutated allele.
question: What is needed for a person to be affected by an autosomal dominant disorder?