autosomal-dominant pattern. Each parent with the condition has a 50% risk of passing the genetic defect on to any child due to its autosomal dominant nature. Most individuals with<unk>  have another affected family member. About 75% of cases are inherited. On the other hand, about 15–30% of all cases are due to de novo genetic mutations; such spontaneous mutations occur in about one in 20,000 births.<unk>  is also an example of dominant negative mutation and haploinsufficiency. It is associated with variable expressivity; incomplete penetrance has not been definitively documented.
Marfan syndrome
Ehlers–Danlos syndromes
Marfanoid
Loeys–Dietz syndrome
Andersen–Tawil syndrome
Laron syndrome
XYY syndrome
Flynn–Aird syndrome