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Final Report/Thesis 2018
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====DNA database==== After analysing and understanding the raw data, it was then imported into a DNA database website called ‘GEDmatch Genesis’ to compare with other DNA samples. A fraction of the original sample and how the database displays the results is show in Figure 26. [[File:ZFigure30.jpg|thumb|500px|center|Figure 26. Fraction of Gedmatch Genesis database results]] For privacy reasons the names and email address could not be display in the figure above. Each column in Figure 26 will be explained. ‘Kit’ represents different DNA samples from various individuals. A segment refers to a section or block of contiguous SNPs. A matching segment is a section that is the same between two people. ‘Largest Seg’ is the largest matching segment. ‘cM’ (Centimorgan) is a measure of genetic linkage, it is a measure of DNA information within a chromosome. ‘Gen’ provides a rough estimate of the number of generations between you match both share, where 3 indicates two candidates share the same great-grand parents, 4 indicates they share the same great great-grand parents etc. 'Overlap' is the number of positions that exist in common between both kits, without regard to whether they match or not. The amount of overlap, along with the largest cM amount, is usually a good indication of the relative quality of the match. Matches with low overlap are highlighted with a pink or red background, depending on the overlap value. ‘Date compared’ the date the DNA sample was processed into the database. ‘Testing company’ the location where the DNA sample was tested.
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