Chapter 13 Pre-Hisotry
In this chapter, Ridley talks about how the expansion of people across Europe and Asia throughout time is related to genetic variation. There is a family connection between the three families off Indo-European, Altaic, and Uralic in which it came from a single language spoken throughout Eurasia 15,000 years ago by hunter-gathering people. Genes support the evidence that expansions and migrations of human beings with technological skills is a important part of human evolution and it also affects evolution. For example the males of the Northern Finland have a different distinct Y chromosome then other Europeans but looks much more like the Y chromosomes of northern Asian people. This is because in the past, Finland was a place where the Uralic language was imposed on. BRCA2 is a gene on chromosome 13. It is a breast cancer gene and was common and high among the Iceland populations.
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