## **Core Concept**
Autosomal dominant disorders are genetic conditions caused by mutations in one of the two copies of a gene. A single copy of the mutated gene is enough to cause the condition. These disorders have a 50% chance of being passed on to offspring.

## **Why the Correct Answer is Right**
The correct answer, , represents a condition that does not follow an autosomal dominant pattern of inheritance. Typically, autosomal dominant disorders include conditions like Huntington's disease, Marfan syndrome, and neurofibromatosis type 1.

## **Why Each Wrong Option is Incorrect**
* **Option A:** - This option represents an autosomal dominant disorder. Conditions like are known to follow this pattern.
* **Option B:** - This is another example of an autosomal dominant condition.
* **Option D:** - Similarly, this option is also an autosomal dominant disorder.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that autosomal dominant disorders often present with a family history of the condition, and there's a 50% chance of passing the mutated gene to each child.

## **Correct Answer: .**