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University Of York

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"Iron Age Infant with Down's Syndrome Identified Through Advanced DNA Testing"

Originally Published 2 years ago — by BBC.com

Researchers have identified an Iron Age infant with Down's syndrome and the first prehistoric person with mosaic Turner syndrome using a new DNA testing method that measures the amount of chromosomes in ancient human cells more precisely. The study, conducted by the University of York, the Francis Crick Institute, the University of Oxford, and Oxford Archaeology, revealed that these chromosomal abnormalities have been present in human history for over 2,000 years. The individuals tested lived across various time periods, and the research sheds light on how sex, gender, and diversity were perceived in past societies.

science archaeologygenetics archaeologygenetics dna-testing downs-syndrome iron-age turner-syndrome university-of-york

Scientists Push Chemical Bonds to Unprecedented Limits.

Originally Published 2 years ago — by SciTechDaily

Scientists from Durham University and the University of York have twisted molecules to their limits to challenge understanding of chemical bonds. They examined how much twisting the chemical bonding in an aromatic ring could endure before it broke. By creating overcrowded aromatic rings, they found that low levels of overcrowding made the ring twist, but without breaking its aromatic bonding. The researchers found there is a balance point, where the ring jumps back and forth between the aromatic structure and the two smaller rings. The study was funded by the Engineering and Physical Sciences Research Council (EPSRC).

science science aromatic-molecules chemical-bonds chemistry durham-university science university-of-york