autosomal dominant inheritance

Autosomal dominant inheritance means that only one copy of a gene mutation from either parent is enough to potentially cause a trait or genetic condition. Humans have two copies of most genes—one from each parent. If one copy has a change that leads to a trait or condition, that trait can appear in the person. This pattern affects both males and females equally and can be passed down from an affected parent to children, with each child having a 50% chance of inheriting the trait or condition. Examples include conditions like Huntington's disease and Marfan syndrome.