**Core Concept**
Autosomal dominant disorders are a group of genetic conditions that occur when a single copy of a mutated gene is sufficient to cause the condition. This is in contrast to autosomal recessive disorders, which require two copies of the mutated gene to manifest. Autosomal dominant disorders have a characteristic pattern of inheritance, where each child of an affected parent has a 50% chance of inheriting the mutated gene.

**Why the Correct Answer is Right**
Autosomal dominant disorders are characterized by a high penetrance, meaning that almost all individuals who inherit the mutated gene will develop the condition. This is in contrast to some autosomal dominant disorders, such as Huntington's disease, which may have variable penetrance. The mechanism of inheritance of autosomal dominant disorders involves a dominant allele that overrides the normal allele, leading to the expression of the condition.

**Why Each Wrong Option is Incorrect**
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**Clinical Pearl / High-Yield Fact**
A key feature of autosomal dominant disorders is that they often have a high rate of new mutations, meaning that they can occur spontaneously in individuals without a family history of the condition. This is because the mutated gene can occur in a germ cell (egg or sperm) without being inherited from a parent.

**Correct Answer:** Not Provided