Stone Age Scandinavians unable to digest milk

Posted: April 4, 2010 at 8:11 am

Story Summary: Stone Age Scandinavians unable to digest milkApril 1, 2010 The hunter-gatherers who inhabited the southern coast of Scandinavia 4,000 years ago were lactose intolerant. This has been shown by a new study carried out by researchers at Uppsala University and Stockholm University. The study, which has been published in the journal BMC Evolutionary Biology, supports the researchers earlier conclusion that todays Scandinavians are not descended from the Stone Age people in question but from a group that arrived later. One possibility is that these differences are evidence of a powerful selection process, through which the Stone Age hunter-gatherers genes were lost due to some significant advantage associated with the capacity to digest milk, says Anna Linderholm. The capacity to consume unprocessed milk into adulthood is regarded as having been of great significance for human prehistory. This capacity is closely associated with the transition from hunter-gatherer to agricultural societies, says Anders Gotherstrom of the Department of Evolutionary Biology at Uppsala University. In the present case, we are inclined to believe that the findings are indicative of what we call gene flow, in other words, migration to the region at some later time of some new group of people, with whom we are genetically similar, he says. The researchers current work involves investigating the genetic makeup of the earliest agriculturalists in Scandinavia, with an eye to potential answers to questions about our ancestors. com) — Todays Scandinavians are not descended from the people who came to Scandinavia at the conclusion of the last ice age but, apparently, from a population that arrived later, concurrently with the introduction . . . com) — DNA study suggests that further waves of prehistoric immigration are waiting to be discovered. Central and northern Europes first farmers were immigrants with barely any ancestral ties to the modern population, . . . com) — A new study led by UCL scientists has found that current genetic data cannot explain why vast swathes of the world can digest milk. com) — A new study from the University of Leicester has found that most men in Europe descend from the first farmers who migrated from the Near East 10,000 years ago. html I didnt even realize that human cloning was yet scientifically possible. 1hour ago | / 5 (1) | 0 Scientists connected to VIB and Ghent University have discovered how plants turn their defense mechanisms on and off. 2 hours ago | / 5 (1) | 0 (PhysOrg. com) — A genome is a complex system of genes and factors that regulate them….Read the Full Story

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