Down Syndrome(Genetic Disorder)

Typically, the nucleus of each cell contains 23 pairs of chromosomes, half of which are inherited from each parent. Down syndrome occurs when an individual has a full or partial extra copy of chromosome 21

The disorder causes a distinct facial appearance, intellectual disability, developmental delays, and sometimes health concerns

they're are other names for down syndrome like "Trisomy 21" also " Trisomy G".

The earliest known depiction of a person with Down syndrome is an angel in a Flemish painting dated 1515. In 1866, Doctor John Langdon downfirst described Down syndrome as a disorder, but he misunderstood how Down syndrome arises. The cause of Down syndrome was discovered rather recently in 1959.

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