Linked from

The 17 pages that link to Down syndrome, each with the reason it gives.

• MeiosisBroader topic: A meiotic chromosome-separation error can create the extra chromosome.

• ChromosomeBroader topic: It is a well-known example of a condition associated with chromosome-number variation.

• Prenatal diagnosisBroader topic: It is a common example of a condition assessed by prenatal screening and diagnostic testing.

• KaryotypeBroader topic: A karyotype can reveal the extra chromosome in many cases.

• AneuploidyBroader topic: It is a common viable example of autosomal aneuploidy.

• NondisjunctionBroader topic: Most cases result from chromosome 21 nondisjunction during gamete formation.

• Chromosome theory of inheritanceBroader topic: Trisomy 21 is a clear human example of inheritance altered by chromosome segregation.

• AmniocentesisBroader topic: Chromosome analysis of amniotic-fluid cells can diagnose this condition.

• Chromosome abnormalityBroader topic: It is a well-known example of an autosomal chromosome-number abnormality.

• Congenital, Hereditary, and Neonatal Diseases and AbnormalitiesBroader topic: It is a congenital condition that commonly results from a chromosomal difference.