DNA is only one among millions of possible genetic molecules

Biology encodes information in DNA and RNA, which are complex molecules finely tuned to their functions. But are they the only way to store hereditary molecular information? Continue reading “DNA is only one among millions of possible genetic molecules”

Eastern United States region; one of the world’s independent centers of domestication

Between approximately 11,000 and 5,000 years ago, human societies in many different regions of the world brought a wide range of different species of plants and animals under domestication, marking the initial emergence of food production economies and the beginning of one of the major transitions in human history. Continue reading “Eastern United States region; one of the world’s independent centers of domestication”

Admixture layers in Sicily and Southern Italy trace multiple migration routes along the Mediterranean – The ‘Mediterranean genetic continuum’

The Mediterranean Sea has represented one of the most important crossroads in human history, acting both as a barrier and a bridge between three continents and multiple human groups characterized by different genetic and cultural backgrounds. Continue reading “Admixture layers in Sicily and Southern Italy trace multiple migration routes along the Mediterranean – The ‘Mediterranean genetic continuum’”

Tarim Basin, Xinjiang, China; Studies on well preserved mummies reveal that they had origins in Europe, central/eastern Siberia and southern/western Asia

This post is a summary of information on the Tarim Basin mummies; research shows that admixture of Western and Eastern Eurasian populations must have taken place at some point deep into Antiquity. Continue reading “Tarim Basin, Xinjiang, China; Studies on well preserved mummies reveal that they had origins in Europe, central/eastern Siberia and southern/western Asia”

An analysis of ancient DNA recreates the genetic history of Portugal and Spain

The genomes of individuals who lived on the Iberian Peninsula in the Bronze Age had minor genetic input from Steppe invaders, suggesting that these migrations played a smaller role in the genetic makeup and culture of Iberian people, compared to other parts of Europe. Daniel Bradley and Rui Martiniano of Trinity College Dublin, in Ireland, and Ana Maria Silva of University of Coimbra, Portugal, report these findings July 27, 2017 in PLOS Genetics. Continue reading “An analysis of ancient DNA recreates the genetic history of Portugal and Spain”

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