Haplogroup J

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Haplogroup J may refer to:

Phylogenetic tree of human mitochondrial DNA (mtDNA) haplogroups

  Mitochondrial Eve (L)  
L0 L1–6 
L1 L2   L3    L4 L5 L6
M N  
CZ D E G Q   O A S R   I W X Y
C Z B F R0   pre-JT   P   U
HV JT K
H V J T


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A genealogical DNA test is a DNA-based test used in genetic genealogy that looks at specific locations of a person's genome in order to find or verify ancestral genealogical relationships, or to estimate the ethnic mixture of an individual. Since different testing companies use different ethnic reference groups and different matching algorithms, ethnicity estimates for an individual vary between tests, sometimes dramatically.

<span class="mw-page-title-main">Haplogroup</span> Group of similar haplotypes

A haplotype is a group of alleles in an organism that are inherited together from a single parent, and a haplogroup is a group of similar haplotypes that share a common ancestor with a single-nucleotide polymorphism mutation. More specifically, a haplogroup is a combination of alleles at different chromosomal regions that are closely linked and that tend to be inherited together. As a haplogroup consists of similar haplotypes, it is usually possible to predict a haplogroup from haplotypes. Haplogroups pertain to a single line of descent. As such, membership of a haplogroup, by any individual, relies on a relatively small proportion of the genetic material possessed by that individual.

Haplogroup J is a human mitochondrial DNA (mtDNA) haplogroup. The clade derives from the haplogroup JT, which also gave rise to haplogroup T. In his book The Seven Daughters of Eve, Bryan Sykes named the originator of this mtDNA haplogroup Jasmine. Within the field of medical genetics, certain polymorphisms specific to haplogroup J have been associated with Leber's hereditary optic neuropathy.

<span class="mw-page-title-main">Human mitochondrial DNA haplogroup</span> Haplogroup defined by differences in human mitochondrial DNA

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 mitochondrial phylogenetic tree. Understanding the evolutionary path of the female lineage has helped population geneticists trace the matrilineal inheritance of modern humans back to human origins in Africa and the subsequent spread around the globe.

Haplogroup K may refer to:

Haplogroup R may refer to:

Haplogroup A may refer to:

Haplogroup B may refer to:

Haplogroup C may refer to:

Haplogroup D may refer to:

Haplogroup I may refer to:

Haplogroup M may refer to:

Haplogroup L may refer to:

Haplogroup F may refer to:

Haplogroup O may refer to:

Haplogroup N may refer to:

Haplogroup E may refer to:

Haplogroup G may refer to:

Haplogroup Q may refer to:

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