![A person is stood at a walk in fridge holding a tray of blood samples. The person is dressed in a white plastic protective suit, gloves, a face covering and protective covering over their head](https://cdn.statically.io/img/media.springernature.com/w735h400/nature-cms/uploads/cms/pages/2913/top_item_image/2024-08-08_NEWS_protein_clock_THUMB-c3a63b149a4b0303a382450a874eebfd.jpg)
Blood test uses ‘protein clock’ to predict risk of Alzheimer’s and other diseases
The clock is effective in people with a range of genetic backgrounds
The clock is effective in people with a range of genetic backgrounds
The clock is effective in people with a range of genetic backgrounds.
The two strands of DNA, although chemically equivalent, are replicated and repaired asymmetrically. Insights into the persistence of DNA damage show how strand-specific interactions shape the genome-wide distribution of mutations, including the unexpected symmetry of mutations arising in the DNA strands during replication.