Is down syndrome sex-linked or autosomal?

Down Syndrome: Down syndrome, also known as Trisomy 21, is an autosomal genetic disorder. Down syndrome occurs when a person has a full or partial copy of chromosome 21.

Down syndrome : Down syndrome is autosomal linked . Risk depends on maternal age and previous history of having Down syndrome baby . Blood test and Ultrasound scan for nuchal translucency can help to predict the risk .