Ashley Zambelli had three kids who tested positive for trisomy 21 — then she found out that she had it too Ashley Zambelli/Tiktok A mom of three discovered that she shares more than just DNA ...

Known by its popular name, Down Syndrome, Trisomy 21 is a genetic disorder that ... an additional copy of chromosome 21 (i.e.

Down syndrome is medically known as Trisomy 21. Everyone has 23 chromosomes from each parent for a total of 46 chromosomes. People with Trisomy 21 have a third chromosome attached to the 21st pair ...

Down Syndrome also known as Trisomy 21 is a genetic condition caused ... Usually, humans have 23 pairs of chromosomes; one set from each parent. People with Down's syndrome have the same genes ...