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 ...

Whereas people are usually born with 46 chromosomes, those with Down Syndrome have 47. There are three types of Down syndrome. Trisomy 21: Approximately 95% of people with Down syndrome have ...