Because Huntington's disease is an _____ disorder, having a parent with HD gives each child a 50% chance of inheriting HD.

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Huntington's disease is an autosomal dominant disorder, which means that only one copy of the mutated gene is needed to develop the disease. If a parent has the mutated gene, each child has a 50% chance of inheriting it. This inheritance pattern is different from autosomal recessive disorders, where both parents must be carriers of the mutated gene for a child to inherit the disorder, and sex-linked disorders, which are associated with genes located on the X or Y chromosomes.

Because Huntington's Disease Is an _____ Disorder, Having a Parent