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In
“The Missing Link of Jewish European Ancestry: Contrasting the Rhineland and the Khazarian Hypotheses,” published in December in the online journal Genome Biology and Evolution, Elhaik says he has proved that Ashkenazi Jews’ roots lie in the Caucasus — a region at the border of Europe and Asia that lies between the Black and Caspian seas — not in the Middle East. They are descendants, he argues, of the Khazars, a Turkic people who lived in one of the largest medieval states in Eurasia and then migrated to Eastern Europe in the 12th and 13th centuries. Ashkenazi genes, Elhaik added, are far more heterogeneous than Ostrer and other proponents of the Rhineland Hypothesis believe. Elhaik did find a Middle Eastern genetic marker in DNA from Jews, but, he says, it could be from Iran, not ancient Judea."
Read more:
'Jews a Race' Genetic Theory Comes Under Fierce Attack by DNA Expert ? Forward.com




operative words Turkic :The Turkic peoples are a collection of ethnic groups that live in northern, eastern, central and western Asia, northwestern China and parts of eastern Europe. They speak languages belonging to the Turkic language family.[10] They share, to varying degrees, certain cultural traits and historical backgrounds. The term Turkic represents a broad ethno-linguistic group of peoples including existing societies such as the Turkish people, Szekelys, Azerbaijanis, Chuvashes, Kazakhs, Tatars, Kyrgyz, Turkmens, Uyghurs, Uzbeks, Bashkirs, Qashqai, Gagauz, Yakuts, Crimean Karaites, Krymchaks, Karakalpaks, Karachays, Balkars, Nogais and as well as past civilizations such as the Göktürks, Kumans, Kipchaks, Avars, Bulgars, Turgeshes, Khazars, Seljuk Turks, Ottoman Turks, Mamluks, Timurids, Khiljis, and possibly Huns and the Xiongnu.
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AND COULD :expressing possibility: used to indicate that something is possibly true or happening in the future
expressing request: used when making polite requests
indicating possible past situation: used to indicate a possible situation in the past that did not happen