## Core Concept
The question tests understanding of genetic inheritance patterns, specifically autosomal dominant inheritance. Autosomal dominant disorders are characterized by the ability of a single copy of a dominant allele to cause the condition. This results in a 50% chance of passing the mutated gene to each offspring.
## Why the Correct Answer is Right
The correct answer, , typically follows an autosomal recessive pattern of inheritance. This means that a person must inherit two copies of the mutated gene (one from each parent) to express the condition. The autosomal recessive pattern is distinct from autosomal dominant because it requires two copies of the mutated gene to manifest the disease.
## Why Each Wrong Option is Incorrect
* **Option A:** is known to follow an autosomal dominant pattern of inheritance. This condition affects the development of bones, leading to various skeletal abnormalities.
* **Option B:** also exhibits an autosomal dominant pattern. It is characterized by the growth of noncancerous (benign) tumors in the nervous system.
* **Option C:** follows an autosomal dominant inheritance pattern as well. This genetic disorder affects the body's ability to regulate blood pressure and is associated with an increased risk of kidney disease.
## Clinical Pearl / High-Yield Fact
A key point to remember is that autosomal dominant conditions often have a family history of the disease, and each child of an affected parent has a 50% chance of inheriting the mutated gene. In contrast, autosomal recessive conditions may seem to "skip" generations because carriers (who have one mutated gene) typically do not show symptoms.
## Correct Answer: .
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