Mosaic Down syndrome is a variant of Down syndrome. Down syndrome is a congenital (present at birth) genetic condition that occurs when a person has three copies of chromosome 21 instead of two ...

In these cases, Down syndrome is caused by a translocation of chromosomes 15 and 21 (Figure 3), in which the long arms of two acrocentric chromosomes are translocated to produce a single long ...

Dec. 1, 2022 — Research on understanding the effect of extra chromosomes for conditions like Down syndrome typically involves examining what genes play a role in the symptoms of these conditions.

To mark World Down Syndrome Day on March 21, Fox News contributor Tom Shillue headed to Times Square to speak with a father of a girl with Down syndrome about common misperceptions.

Down syndrome, the most frequent birth defect (around 1/700 births), results in most cases from the presence in all cells of an extra copy of chromosome 21. It is characterized by a complex and ...

Makubalo stressed the need for improved support systems for people with Down syndrome, a genetic condition affecting up to one in 500 births each year in South Africa. She emphasised how crucial ...