翻訳と辞書 Words near each other ・ Human viruses in water ・ Human visual system model ・ Human voice ・ Human Voice (album) ・ Human Voices ・ Human Waste ・ Human waste ・ Human Waste Project ・ Human wave attack ・ Human Weapon ・ Human Welfare Trust ・ Human Wheels ・ Human Wreckage ・ Human Wrecking Balls ・ Human Writes ・ Human Y-chromosome DNA haplogroup ・ Human zoo ・ Human Zoo (album) ・ Human Zoo (Electric Six album) ・ Human β-globin locus ・ Human's Dust ・ Human's Lib ・ Human, All Too Human ・ Human, All Too Human (TV series) ・ Human, Iran ・ Human-baiting ・ Human-based computation ・ Human-based computation game ・ Human-based evolutionary computation ・ Human-based genetic algorithm Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Human Y-chromosome DNA haplogroup ： ウィキペディア英語版 Human Y-chromosome DNA haplogroup In human genetics, a human Y-chromosome DNA haplogroup is a haplogroup defined by differences in the non-recombining portions of DNA from the Y chromosome (called Y-DNA). It represents human genetic diversity based on single-nucleotide polymorphisms (SNPs) on the Y chromosome.〔(【引用サイトリンク】url=http://www.familytreedna.com/understanding-haplogroups.aspx )〕 Y-DNA haplogroups represent major branches of the Y-chromosome phylogenetic tree. Y-chromosomal Adam is the name given by researchers to the patrilineal most recent common ancestor of all living humans at the root of this tree. Estimates of the date when Y-chromosomal Adam lived have varied significantly in different studies. ==Naming convention== Y-DNA haplogroups are defined by the presence of a series of Y-DNA SNP markers. Subclades are defined by a ''terminal SNP'', the SNP furthest down in the Y-chromosome phylogenetic tree. The Y Chromosome Consortium (YCC) developed a system of naming major Y-DNA haplogroups with the capital letters A through T, with further subclades named using numbers and lower case letters (YCC longhand nomenclature). YCC shorthand nomenclature names Y-DNA haplogroups and their subclades with the first letter of the major Y-DNA haplogroup followed by a dash and the name of the defining terminal SNP.〔(【引用サイトリンク】url=http://www.familytreedna.com/faq/answers.aspx?id=26#318 )〕 Y-DNA haplogroup nomenclature is changing over time to accommodate the increasing number of SNPs being discovered and tested, and the resulting expansion of the Y-chromosome phylogenetic tree. This change in nomenclature has resulted in inconsistent nomenclature being used in different sources.〔 This inconsistency, and increasingly cumbersome longhand nomenclature, has prompted a move towards using the simpler shorthand nomenclature. In September 2012, Family Tree DNA provided the following explanation of its changing Y-DNA haplogroup nomenclature to individual customers on their Y-DNA results pages (note that the haplogroup mentioned below relates to a specific individual):〔(【引用サイトリンク】title=Family Tree DNA - Genetic Testing for Ancestry, Family History & Genealogy )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Human Y-chromosome DNA haplogroup」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.