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A genetic study published in January 2012 stated that the indigenous North West African ancestry appears most closely related to populations outside of Africa but "divergence between Moroccan people and Near Eastern/Europeans likely precedes the Holocene (>12,000 ya) and The Paleolithic (>40.000BC)."
A genetic study published in the "European Journal of Human Genetics" in Nature (2019) showed that Middle Easterners (Arabs) are closely related to Europeans and Northern Africans as well as to Southwest Asians. [38] The "Arab macropopulation" is generally closely related to other "West-Eurasian" populations, such as Europeans or Iranian peoples.
Samples over-represent the smaller populations which are usually the subject of genetic studies [29] Country [5] n A B E-M33 E-M2 E-M35* E-M78* E-V12 E-V32 E-V13
The genetic history of the Middle East is the subject of research within the fields of human population genomics, archaeogenetics and Middle Eastern studies.Researchers use Y-DNA, mtDNA, and other autosomal DNA tests to identify the genetic history of ancient and modern populations of Egypt, Persia, Mesopotamia, Anatolia, Arabia, the Levant, and other areas.
The various ethnolinguistic groups found in the Caucasus, Central Asia, Europe, the Middle East, North Africa and/or South Asia demonstrate differing rates of particular Y-DNA haplogroups.
Of course, assessing dementia risk is pretty complicated, and there are several genetic, lifestyle, and environmental factors that play a role in its eventual development. But if you have a chance ...
The genetic history of North Africa encompasses the genetic history of the people of North Africa.The most important source of gene flow to North Africa from the Neolithic Era onwards was from Western Asia, while the Sahara desert to the south and the Mediterranean Sea to the north were also important barriers to gene flow from sub-Saharan Africa and parts of Europe in prehistory.
In the page 19 from the Ahmed Reguig et al. 2014 study, you can see that the haplogroup E1b1b1b-M81 constitute only 23% to 33% in the Moroccan-Arabs population Look at the Table 3: Geographical distribution of E1b1b1b-M81 haplogroup in the world Moroccan Arabs(N=44)[A] 23% Moroccan Arabs(N=49)[C] 33%