Christof’s postdoctoral project studies genomics and precision medicine in Asia. Gene banks collect, decode and store samples and data of DNA, and are thus key to conducting genomic research and to developing precision medicine. National governments compete through massive investments to participate in the emerging market of medicine tailored on the needs of individual patients. In 2016, for example, China opened its ‘National GeneBank’ in Shenzhen and launched its ‘Precision Medicine Initiative’. Genomic medicine has paradoxically been either praised for overcoming categorizations such as ethnic groups and nations by uncovering the ‘truth’ of the genome of the ‘individual’ or otherwise condemned as recreating race in the twenty-first century. Christof asks how measurements of relatedness for the production of medicine shape, and are shaped, by ideas and practices of belonging and difference. Which tensions emerge and how are they negotiated when ‘national’ genomes and ‘individualised’ medicine are produced in global networks of science and bioeconomy?