A new law that creates a Down Syndrome Diagnosis Awareness Program for New York state was recently signed into law by Gov.

Down syndrome, for example, is caused by a trisomy—three copies instead of two—of chromosome 21. Amniocentesis and chorionic villus sampling (CVS), which are currently considered the “gold standard” ...

Bellou et al. show that acrocentric chromosomes, such as chromosome 21, are more prone to aneuploidy in oocytes due to their unique architecture and lower cohesion levels, which lead to ...