All of the following are autosomal dominant disorders except –
**Core Concept**
Autosomal dominant disorders are characterized by the ability of a single copy of a dominant allele to cause the condition. This pattern of inheritance means that a mutation in one of the two copies of the gene is sufficient to cause the disorder.
**Why the Correct Answer is Right**
Since the question is incomplete, let's discuss the general principle that applies to all autosomal dominant disorders: they can be inherited from either parent or result from a new mutation. Each child of an affected parent has a 50% chance of inheriting the mutated gene.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific option provided, we cannot directly address why it's incorrect.
**Option B:** Similarly, this option cannot be evaluated without the question's context.
**Option C:** The same applies here; the lack of information makes it impossible to assess.
**Option D:** Again, without the details of the option, we cannot determine its accuracy.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that autosomal dominant disorders often appear in every generation of a family, which can be a crucial clue in diagnosing these conditions.
**Correct Answer:** Not provided due to incomplete question.