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A haplotype is a group of alleles in an organism that are inherited together from a single parent, [1] [2] and a haplogroup (haploid from the Greek: ἁπλοῦς, haploûs, "onefold, simple" and English: group) is a group of similar haplotypes that share a common ancestor with a single-nucleotide polymorphism mutation. [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
Individuals within a haplogroup share similar numbers of short tandem repeats (STRs) and single-nucleotide polymorphisms (SNPs). [2] The Y-chromosome accumulates approximately two mutations per generation, [ 3 ] and Y-DNA haplogroups represent significant branches of the Y-chromosome phylogenetic tree , each characterized by hundreds or even ...
In human population genetics, Y-Chromosome haplogroups define the major lineages of direct paternal (male) lines back to a shared common ancestor in Africa. Men in the same haplogroup share a set of differences, or markers, on their Y-Chromosome, which distinguish them from men in other haplogroups.
[1] (a) Pie charts on the map. (b) Counts of haplogroups in table format. For populations details, see 1000 Genomes Project#Human genome samples. In human genetics, a human mitochondrial DNA haplogroup is a haplogroup defined by differences in human mitochondrial DNA. Haplogroups are used to represent the major branch points on the ...
DNA molecule 1 differs from DNA molecule 2 at a single base-pair location (a C/A polymorphism). A haplotype (haploid genotype) is a group of alleles in an organism that are inherited together from a single parent. [1] [2] Many organisms contain genetic material which is inherited from two parents.
The authors of another study have reported finding haplogroup A-M31 in 5% (2/39) of a sample of Mandinka from Senegambia and 2% (1/55) of a sample of Dogon from Mali. [5] Haplogroup A-M31 also has been found in 3% (2/64) of a sample of Berbers from Morocco [6] and 2.3% (1/44) of a sample of unspecified ethnic affiliation from Mali. [10]
Haplogroup L3 is a human mitochondrial DNA (mtDNA) haplogroup. The clade has played a pivotal role in the early dispersal of anatomically modern humans . It is strongly associated with the out-of-Africa migration of modern humans of about 70–50,000 years ago.