Scientists the largest ever set of genes from a single nation . The data reveals some surprising genetic mutations in Icelandic people . Data also revealed that the father of humanity is older than first thought . Eight per cent of the population has a gene that does n't function at all . Study found genes that increase the risk of Alzheimer 's and kidney disease . Scientists say genetics will help them develop better tolerance for disease .
Scientists sequenced largest ever set of genomes from a single nation . The data reveals some surprising genetic mutations in Icelandic people . Data also revealed that the father of humanity is older than first thought . Eight per cent of the population has a gene that does n't function at all . Study found genes that increase the risk of Alzheimer 's and liver disease . Scientists say data will help them develop better treatments for disease .