Which Chromosome Is Affected in Down Syndrome?

Down syndrome:

1. Down syndrome is a genetic disorder, which leads to various physical and mental disabilities.
2. It is due to the presence of an extra chromosome 21 also known as trisomy of chromosome 21.
3. Down syndrome is one of the leading causes of genetic disorders around the world.
4. Individuals with Down syndrome have an extra 21st chromosome. It is also known as trisomy.