Scientists have a better understanding of what causes an abnormal number of chromosomes in offspring, a condition called aneuploidy that encompasses the most common genetic disorders in humans, such as Down syndrome, and is a leading cause of pregnancy loss.
...... The research sheds light on the genetic underpinnings of aneuploidy, a condition marked by having an abnormal number of chromosomes. It is the underlying cause of many genetic diseases – such as Down syndrome, Edwards syndrome, and Patau syndrome – as well as many cases of pregnancy loss.
Click here to read the EurekAlert! published on 17th July 2009, and here for the online publication in the Proceedings of the National Academy of Science of the United States of America, with links to purchase the full text of the research report.