The given pedigree chart is a representation of an autosomal dominant trait. Such a trait is carried by the autosomes and is irrelevant to the sex of the person. As given in the chart, it is inherited by both males and females equally and does not skip generations. The latter is ensured by the dominant nature of the trait, meaning only a single copy of the gene can cause it. A striking contrast of such a trait is observed with an autosomal recessive trait, in which both copies of the gene are required to inherit the trait. Examples of autosomal dominant diseases include myotonic dystrophy, Huntington disease, polycystic kidney disease.
