<prompt> The new terminology for downs syndrome is ?Submental disorderOligophreniaMadnessMentally unstable  <response>: Ref. Oxford textbook of Psychiatry. Page 170 Downs Syndrome FeaturesMost common autosomal trisomy  Mental retardation  Short stature  Hypotonia  Depressed nasal bridge, upslanting palpebral fissures, epicanthal fold  Congenital heart defects in approximately 40 of cases  Increased risk of acute lymphoblastic leukemia  Alzheimer disease by fifth or sixth decade amyloid precursor protein, APP gene on chromosome 21  Reduced fertility  Risk increases with increased maternal age 