International researchers have detected aneuploidies in the genomes of ancient DNA.
Scientists from the Francis Crick Institute, the University of Oxford, the University of York and Oxford Archaeology, developed a new method to measure the number of chromosomes in ancient genomes more accurately.
They used the method to identify the first prehistoric people with mosaic Turner syndrome, Klinefelter syndrome and Down syndrome, who lived about 2500 years ago.
Read more at Phys Org, and in the paper published in Nature.