The following feature is not common in 22q 11.2 deletion syndrome

Ans. (a) Mental retardation(Ref: Robbins 9th/pg 163)Individuals with the 22qll.2 deletion syndrome have high risk for psychotic illnesses, such as schizophrenia (25% cases) and bipolar disorders.In addition, attention deficit hyperactivity disorder is seen in 30-35% of affected children.