What is trisomy 18 and why is it fatal? Trisomy 18 — also known as Edwards syndrome — is a chromosomal condition that is fatal in all but very rare cases, Dr. Silvana Ribaudo, an ob-gyn at ...

A century after Down syndrome was first described, scientists discovered that the root cause of this disorder is a condition called trisomy 21. What strides in research have been made since then?

She's still sweet — and a little bit sassy — and a rare survivor living with a life-threatening genetic condition known as ...

The recurrence risk with trisomy is 1% to 2% or the maternal age risk, whichever is greater. [2] There is a recurrence risk of 5% to 10% for an affected live-born infant in cases when a parent has ...

What is the structure of a chromosome? Why does the total number of chromosomes in a cell matter? Learn how chromosomes self-organize within single cells, and how these patterns help us detect ...

Symmetric intrauterine growth restriction (both weight and head circumference below the 10th percentile) is usually seen in Trisomy 13. [2] Evaluate the eyebrows. Occasionally, synophrys ...