It took more than 50 years for Marthe Gautier to set the record straight about her discovery of the genetic cause of Down ...

In the world, one out of 700 children are born with Down's syndrome. A syndrome, where the child has an extra copy of chromosome 21, resulting in 47 chromosomes instead of 46.

Patients with Klinefelter and triple X syndromes show an increased prevalence of SLE and Sjögren disease, likely due to the synergistic interaction of the extra X chromosomes.

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 ...

Three days after the transfusion another blood sample was obtained for chromosome analysis, and the pattern was found to be different from that before therapy. Of 35 cells counted 28 had 47 ...

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.

Down syndrome, or trisomy 21, is a genetic disorder where babies have an extra 21st chromosome. Chromosomes are packages of genes that tell the body how to grow. An extra chromosome changes how ...