A microsatellite is a tract of repetitive DNA in which certain DNA motifs are repeated, typically 5–50 times. Microsatellites occur at thousands of locations within an organism's genome. They have a higher mutation rate than other areas of DNA leading to high genetic diversity. Microsatellites are often referred to as short tandem repeats (STRs) by forensic geneticists and in genetic genealogy, or as simple sequence repeats (SSRs) by plant geneticists.
A haplotype is a group of alleles in an organism that are inherited together from a single parent.
Genetic genealogy is the use of genealogical DNA tests, i.e., DNA profiling and DNA testing, in combination with traditional genealogical methods, to infer genetic relationships between individuals. This application of genetics came to be used by family historians in the 21st century, as DNA tests became affordable. The tests have been promoted by amateur groups, such as surname study groups or regional genealogical groups, as well as research projects such as the Genographic Project.
A genealogical DNA test is a DNA-based genetic 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.
A Y-STR is a short tandem repeat (STR) on the Y-chromosome. Y-STRs are often used in forensics, paternity, and genealogical DNA testing. Y-STRs are taken specifically from the male Y chromosome. These Y-STRs provide a weaker analysis than autosomal STRs because the Y chromosome is only found in males, which are only passed down by the father, making the Y chromosome in any paternal line practically identical. This causes a significantly smaller amount of distinction between Y-STR samples. Autosomal STRs provide a much stronger analytical power because of the random matching that occurs between pairs of chromosomes during the zygote making process.
RecLOH is a term in genetics that is an abbreviation for "Recombinant Loss of Heterozygosity".
Haplogroup G (M201) is a human Y-chromosome haplogroup. It is one of two branches of the parent haplogroup GHIJK, the other being HIJK.
A surname DNA project is a genetic genealogy project which uses genealogical DNA tests to trace male lineage.
In genetic genealogy, a unique-event polymorphism (UEP) is a genetic marker that corresponds to a mutation that is likely to occur so infrequently that it is believed overwhelmingly probable that all the individuals who share the marker, worldwide, will have inherited it from the same common ancestor, and the same single mutation event.
FamilyTreeDNA is a division of Gene by Gene, a commercial genetic testing company based in Houston, Texas. FamilyTreeDNA offers analysis of autosomal DNA, Y-DNA, and mitochondrial DNA to individuals for genealogical purpose. With a database of more than two million records, it is the most popular company worldwide for Y-DNA and mitochondrial DNA, and the fourth most popular for autosomal DNA. In Europe, it is the most common also for autosomal DNA. FamilyTreeDNA as a division of Gene by Gene were acquired by MYDNA, Inc., an Australian company, in January 2021.
Haplogroup G2b-M377 is a Y-chromosome haplogroup and is defined by the presence of the M377 mutation. It is a branch of Haplogroup G2, which in turn is defined by the presence of the M201 mutation.
The Sorenson Molecular Genealogy Foundation (SMGF) was an independent DNA and genealogical research institution with the goal of demonstrating how the peoples of the world are related. SMGF collected DNA samples and genealogical information from individuals across the globe to establish these connections.
In human genetics, Haplogroup G-M285, also known as Haplogroup G1, is a Y-chromosome haplogroup. Haplogroup G1 is a primary subclade of haplogroup G.
Haplogroup G-FGC7535, also known as Haplogroup G2a1, is a Y-chromosome haplogroup. It is an immediate descendant of G2a (G-P15), which is a primary branch of haplogroup G2 (P287).
In human genetics, Haplogroup G-P303 is a Y-chromosome haplogroup. It is a branch of haplogroup G (Y-DNA) (M201). In descending order, G-P303 is additionally a branch of G2 (P287), G2a (P15), G2a2, G2a2b, G2a2b2, and finally G2a2b2a. This haplogroup represents the majority of haplogroup G men in most areas of Europe west of Russia and the Black Sea. To the east, G-P303 is found among G persons across the Middle East, Iran, the southern Caucasus area, China, and India. G-P303 exhibits its highest diversity in the Levant.
In human genetics, Haplogroup G-M406 is a Y-chromosome haplogroup. G-M406 is a branch of Haplogroup G Y-DNA (M201). More specifically in descending order, G-M406 is a subbranch also of G2 (P287), G2a (P15) and finally G2a2b (L30/S126) Haplogroup G-M406 seems most common in Turkey and Greece. Secondary concentrations of G-M406 are found in the northern and eastern Mediterranean, and it is found in very small numbers in more inland areas of Europe, the Middle East, and the southern Caucasus Mountains area.
GeneTree was a family history website focused on using DNA testing to trace ancestry. A website account was free, and within their account users could order DNA tests, enter results from other testing companies, search the DNA database, create an online family tree, and correspond with family members – including sharing pictures.
As with all modern European nations, a large degree of 'biological continuity' exists between Bosnians and Bosniaks and their ancient predecessors with Y chromosomal lineages testifying to predominantly Paleolithic European ancestry. Studies based on bi-allelic markers of the NRY have shown the three main ethnic groups of Bosnia and Herzegovina to share, in spite of some quantitative differences, a large fraction of the same ancient gene pool distinct for the region. Analysis of autosomal STRs have moreover revealed no significant difference between the population of Bosnia and Herzegovina and neighbouring populations.
Haplogroup E-M2, also known as E1b1a1-M2, is a human Y-chromosome DNA haplogroup. E-M2 is primarily distributed within sub-Saharan Africa. More specifically, E-M2 is the predominant subclade in West Africa, Central Africa, Southern Africa, and the region of the African Great Lakes; it also occurs at moderate frequencies in North Africa and Middle East. E-M2 has several subclades, but many of these subhaplogroups are included in either E-L485 or E-U175. E-M2 is especially common among indigenous Africans who speak Niger-Congo languages, and was spread to Southern Africa and East Africa through the Bantu expansion.