sentences:  Because 3C syndrome is an autosomal recessive disorder, parents with one child with the disorder have a 25% chance of having another child with the disorder.There is an overlap in symptoms between 3C syndrome and Joubert syndrome.Joubert syndrome often manifests with similar cerebellar hypoplasia and its sequelae, including hyperpnea, ataxia, changes in eye movement, and cleft lip and palate.