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Haplogroup K2a (Y-DNA)
Haplogroup K2a (M2308, Z4842) is a human Y-chromosome DNA haplogroup. K2a is a primary subclade of haplogroup K2 (M526), which in turn is a primary descendant of haplogroup K (M9). Its sole primary descendant is haplogroup K-M2313 (M2313, Z4858 S11799). K-Y28301. Three living individuals in India have been found to carry K-Y28299* or K-Y28301. (As of 2018, ISOGG had not incorporated K-Y28299 or K-Y28301.) * ISOGG alone lists a haplogroup known only as "NO1~" identified by the SNP CTS707/M2306, as a sibling of NO-M214. (Under the taxonomic conventions used by ISOGG, a tilde indicates a distinct haplogroup, the position of which in the phylogeny is as yet unclear.) NO1~ is likely a primary branch of either K-M2313 or NO-M214, because, as of 2018, YFull regards CTS707/M2306 as synonymous with M214/PAGE39/PAGES00039, and yet NO1~ is also ''not'' (according to ISOGG) ancestral to either Haplogroup N (M231) or Haplogroup O (M175). Phylogenetic tree K2a ''K-M2308'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Before Present
Before Present (BP) years, or "years before present", is a time scale used mainly in archaeology, geology and other scientific disciplines to specify when events occurred relative to the origin of practical radiocarbon dating in the 1950s. Because the "present" time changes, standard practice is to use 1 January 1950 as the commencement date (epoch) of the age scale. The abbreviation "BP" has been interpreted retrospectively as "Before Physics", which refers to the time before nuclear weapons testing artificially altered the proportion of the carbon isotopes in the atmosphere, which scientists must now account for. In a convention that is not always observed, many sources restrict the use of BP dates to those produced with radiocarbon dating; the alternative notation RCYBP stands for the explicit "radio carbon years before present". Usage The BP scale is sometimes used for dates established by means other than radiocarbon dating, such as stratigraphy. This usage differs from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Eurasia
Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelago and the Russian Far East to the east. The continental landmass is bordered by the Atlantic Ocean and Africa to the west, the Pacific Ocean to the east, the Arctic Ocean to the north, and by Africa, the Mediterranean Sea, and the Indian Ocean to the south. The division between Europe and Asia as two continents is a historical social construct, as many of their borders are over land; thus, in some parts of the world, Eurasia is recognized as the largest of the six, five, or four continents on Earth. In geology, Eurasia is often considered as a single rigid megablock. However, the rigidity of Eurasia is debated based on paleomagnetic data. Eurasia covers around , or around 36.2% of the Earth's total land area. It is also home to the largest c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Society Of Genetic Genealogy
The International Society of Genetic Genealogy (ISOGG) is an independent non-commercial nonprofit organization of genetic genealogists run by volunteers. It was founded by a group of surname DNA project administrators in 2005 to promote DNA testing for genealogy. It advocates the use of genetics in genealogical research, provides educational resources for genealogists interested in DNA testing, and facilitates networking among genetic genealogists. , it comprises over 8,000 members in 70 countries. , regional meetings are coordinated by 20 volunteer regional coordinators located in the United States, Australia, Brazil, Canada, England, Egypt, Ireland and Russia. ISOGG hosts the ISOGG Wiki, a free online encyclopedia maintained by ISOGG members which contains a wide variety of educational resources and guidance for genetic genealogy consumers and DNA project administrators. The ISOGG Wiki contains ethical guidelines for DNA project administrators and ISOGG members perform peer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-nucleotide Polymorphism
In genetics, a single-nucleotide polymorphism (SNP ; plural SNPs ) is a germline substitution of a single nucleotide at a specific position in the genome. Although certain definitions require the substitution to be present in a sufficiently large fraction of the population (e.g. 1% or more), many publications do not apply such a frequency threshold. For example, at a specific base position in the human genome, the G nucleotide may appear in most individuals, but in a minority of individuals, the position is occupied by an A. This means that there is a SNP at this specific position, and the two possible nucleotide variations – G or A – are said to be the alleles for this specific position. SNPs pinpoint differences in our susceptibility to a wide range of diseases, for example age-related macular degeneration (a common SNP in the CFH gene is associated with increased risk of the disease) or nonalcoholic fatty liver disease (a SNP in the PNPLA3 gene is associated with inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indonesia
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guinea. Indonesia is the world's largest archipelagic state and the 14th-largest country by area, at . With over 275 million people, Indonesia is the world's fourth-most populous country and the most populous Muslim-majority country. Java, the world's most populous island, is home to more than half of the country's population. Indonesia is a presidential republic with an elected legislature. It has 38 provinces, of which nine have special status. The country's capital, Jakarta, is the world's second-most populous urban area. Indonesia shares land borders with Papua New Guinea, East Timor, and the eastern part of Malaysia, as well as maritime borders with Singapore, Vietnam, Thailand, the Philippines, Australia, Palau, and India ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haplogroup K2
Haplogroup K2, also known as K-M526 and formerly known as K(xLT) and MNOPS, is a human Y-DNA haplogroup. Relative to its age, the internal structure of K2 is extremely complex, and subclades of it are carried by males native to regions including Australasia, Oceania, Southeast Asia, South Asia, East Asia, Central Asia, the Americas, Europe, and the Horn of Africa. Many of its branches are very common, the most numerically important being R in Europe and South Asia and O in East and Southeast Asia (as well as recent immigrants to other continents). Haplogroups N and Q, while they are less common overall, are also very widespread, in northern Eurasia and the Americas respectively. M and S are almost entirely restricted to Oceania and eastern Indonesia, where they occur at high frequency. Rare subclades outside of these major lineages are known mainly from Island Southeast Asia (including the Andaman Islands and the Philippines). Basal paragroup K2* has been identified ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pakistan
Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's fifth-most populous country, with a population of almost 243 million people, and has the world's second-largest Muslim population just behind Indonesia. Pakistan is the 33rd-largest country in the world by area and 2nd largest in South Asia, spanning . It has a coastline along the Arabian Sea and Gulf of Oman in the south, and is bordered by India to the east, Afghanistan to the west, Iran to the southwest, and China to the northeast. It is separated narrowly from Tajikistan by Afghanistan's Wakhan Corridor in the north, and also shares a maritime border with Oman. Islamabad is the nation's capital, while Karachi is its largest city and financial centre. Pakistan is the site of several ancient cultures, including the 8,500-year-old Neolithic site of Mehrgarh in Balochistan, the Indus Valley civilisation of the Bronze Age, the most extens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iran
Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmenistan to the north, by Afghanistan and Pakistan to the east, and by the Gulf of Oman and the Persian Gulf to the south. It covers an area of , making it the 17th-largest country. Iran has a population of 86 million, making it the 17th-most populous country in the world, and the second-largest in the Middle East. Its largest cities, in descending order, are the capital Tehran, Mashhad, Isfahan, Karaj, Shiraz, and Tabriz. The country is home to one of the world's oldest civilizations, beginning with the formation of the Elamite kingdoms in the fourth millennium BC. It was first unified by the Medes, an ancient Iranian people, in the seventh century BC, and reached its territorial height in the sixth century BC, when Cyrus the Great f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle East
The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabia (including the Arabian Peninsula and Bahrain), Asia Minor (Asian part of Turkey except Hatay Province), East Thrace (European part of Turkey), Egypt, Iran, the Levant (including Ash-Shām and Cyprus), Mesopotamia (modern-day Iraq), and the Socotra Archipelago (a part of Yemen). The term came into widespread usage as a replacement of the term Near East (as opposed to the Far East) beginning in the early 20th century. The term "Middle East" has led to some confusion over its changing definitions, and has been viewed by some to be discriminatory or too Eurocentric. The region includes the vast majority of the territories included in the closely associated definition of Western Asia (including Iran), but without the South Caucasus, and additionally includes all of Egypt (not just the Sinai Region) and all of Turkey (not just the part barring East Thrace). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spencer Wells
Spencer Wells (born April 6, 1969) is an American geneticist, anthropologist, author and entrepreneur. He co-hosts The Insight podcast with Razib Khan. Wells led The Genographic Project from 2005 to 2015, as an Explorer-in-Residence at the National Geographic Society, and is the founder and executive director of personal genomics nonprofit The Insitome Institute. Biography Youth and education Wells was born in Marietta, Georgia and grew up in Lubbock, Texas. He attended both All Saints School and Lubbock High School, and received a National Merit Scholarship. He obtained a Bachelor of Science in Biology from the University of Texas at Austin in 1988 and a Ph.D. in Biology from Harvard University in 1994. He was a postdoctoral fellow at Stanford University between 1994 and 1998, and a research fellow at the University of Oxford between 1999 and 2000. Career Wells did his Ph.D. work under Richard Lewontin, and later did postdoctoral research with Luigi Luca Cavalli-Sfo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malay People
Malays ( ms, Orang Melayu, Jawi: أورڠ ملايو) are an Austronesian ethnic group native to eastern Sumatra, the Malay Peninsula and coastal Borneo, as well as the smaller islands that lie between these locations — areas that are collectively known as the Malay world. These locations are today part of the countries of Malaysia, Indonesia (eastern and southern Sumatra, Bangka Belitung Islands, western coastal Borneo ( Kalimantan) and Riau Islands), southern part of Thailand ( Pattani, Satun, Songkhla, Yala and Narathiwat), Singapore and Brunei Darussalam. There is considerable linguistic, cultural, artistic and social diversity among the many Malay subgroups, mainly due to hundreds of years of immigration and assimilation of various regional ethnicity and tribes within Maritime Southeast Asia. Historically, the Malay population is descended primarily from the earlier Malayic-speaking Austronesians and Austroasiatic tribes who founded several ancient mariti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telugu People
Telugu people ( te, తెలుగువారు, Teluguvāru), or Telugus, or Telugu vaaru, are the largest of the four major Dravidian ethnolinguistic groups in terms of population. Telugus are native to the Indian states of Andhra Pradesh, Telangana and the Yanam district of Puducherry. A significant number of Telugus also reside in the surrounding Indian states of Karnataka, Tamil Nadu, Maharashtra, Gujarat, West Bengal, Chhattisgarh, Kerala, and Odisha, as well in the union territory of Andaman and Nicobar Islands. Telugus claim descent from the Andhras, from whom the Telugus inherit their ethnonym. Telugu is the fourth most spoken language in India and the 15th most spoken language in the world. Andhra was mentioned in the Sanskrit epics such as Aitareya Brahmana (by some estimates c. 800 BCE). According to Aitareya Brahmana of the Rigveda, the Andhras left North India from the banks of river Yamuna and migrated to South India. They are mentioned at the time of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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