X-linked dominant inheritance

One of the ways a genetic trait or condition caused by a mutated (changed) gene on the X chromosome can be passed down (inherited) from parent to child. In X-linked dominant inheritance, a genetic condition can occur when the child inherits one copy of a mutated (changed) gene on the X chromosome from one parent. Daughters have a 50% chance of inheriting the mutated X-linked gene from their mother and a 100% chance of inheriting the mutated X-linked gene from their father. Sons have a 50% chance of inheriting the mutated X-linked gene from their mother and a 0% chance of inheriting the mutated X-linked gene from their father.

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