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In a study of Israeli Jews from some different groups (Ashkenazi Jews, Kurdish Jews, North African Sephardi Jews, and Iraqi Jews) and Palestinian Muslim Arabs, more than 70% of the Jewish men and 82% of the Arab men whose DNA was studied had inherited their Y chromosomes from the same paternal ancestors, who lived in the region within the last ...
Efforts to identify the origins of Ashkenazi Jews through DNA analysis began in the 1990s. There are three types of genetic origin testing, autosomal DNA (atDNA), mitochondrial DNA (mtDNA), and Y-chromosomal DNA . Autosomal DNA is a mixture from an individual's entire ancestry.
The mutation might then have been "reintroduced by recurrent gene flow from Ashkenazi populations to other Jewish, European, and North African populations. The present-day frequency of the mutation in control populations (0.05% in Europeans, 0.5% in North-African Arabs and 1% in Ashkenazi Jews) may support this scenario".) [43] [44]
Ashkenazi Jews carry a particularly high burden of disease-causing genetic mutations, such as those in the Ancient DNA from the teeth of 14th-century Ashkenazi Jews in Germany already included ...
DNA from human remains found in a medieval well suggests they belonged to Ashkenazi Jews who fell victim to antisemitic violence during the 12th century.
Hackers have compiled a giant apparent list of people with Ashkenazi Jewish ancestry after taking that information from the genetic testing service 23andMe, which is now being shared on the internet.