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Haplogroup X is a human mitochondrial DNA (mtDNA) haplogroup. It is found in North America, Europe, Western Asia, North Africa, and the Horn of Africa. A mtDNA-based map of major human migrations. Haplogroup X diverged from haplogroup N roughly 30,000 years ago (just prior to or during the Last Glacial Maximum).
One exception to this are the Chibcha speakers of Colombia, whose ancestry comes from both North and South America. [31] In 2014, the autosomal DNA of a 12,500+ year old infant from Montana was sequenced. [32] The DNA was taken from a skeleton referred to as Anzick-1, found in close association with several Clovis artifacts.
Anzick-1 was a young (1–2 years old) Paleoindian child whose remains were found in south central Montana, United States, in 1968. He has been dated to 12,990–12,840 years Before Present. [1] The child was found with more than 115 tools made of stone and antlers and dusted with red ocher, suggesting a deliberate burial. [2]
Arlington Springs Man [nb 1] was an ancient Paleoindian, [1] most likely a man, [2] whose remains were found in 1959 on Santa Rosa Island, one of the Channel Islands located off the coast of Southern California. He lived about 13,000 years Before Present, making him the earliest dated adult in North America.
Henrietta Lacks (born Loretta Pleasant; August 1, 1920 – October 4, 1951) [2] was an African-American woman [5] whose cancer cells are the source of the HeLa cell line, the first immortalized human cell line [B] and one of the most important cell lines in medical research. An immortalized cell line reproduces indefinitely under specific ...
Scientific excavations and analysis in the Paisley Caves since 2002 have uncovered substantial new discoveries, including subfossil human coprolites with the oldest DNA evidence of human habitation in North America, various artifacts, and animal remains. The DNA was radiocarbon dated to 14,300 BP or roughly 12,000 BC. [3]
The following articles are lists of human Y-chromosome DNA haplogroups found in populations around the world. Y-DNA haplogroups by ethnic group; Y-DNA haplogroups in populations of Europe; Y-DNA haplogroups in populations of the Caucasus; Y-DNA haplogroups in populations of the Near East; Y-DNA haplogroups in populations of North Africa
Figure 2. Schematic illustration of maternal (mtDNA) gene-flow in and out of Beringia (long chronology, single source model). The Ancient Beringian (AB) is a human archaeogenetic lineage, based on the genome of an infant found at the Upward Sun River site (dubbed USR1), dated to 11,500 years ago. [1]