"Discovery of 1st Ancient Case of Turner Syndrome with Single X Chromosome in DNA"

Researchers have identified the first ancient case of Turner syndrome in a 2,500-year-old individual with just one X chromosome, using DNA from the Thousand Ancient British Genomes project. The study also revealed five other individuals with sex chromosomal conditions, including Klinefelter syndrome, XYY syndrome, and Down syndrome, shedding light on genetic diversity and social gender norms in ancient societies. The findings highlight the potential of studying variations in sex chromosomes in ancient DNA to gain a more complex understanding of human history and gender identity.