Vad har ni i ert "ctrl + v" just nu?

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The analysis is performed by extracting nuclear DNA from the cells of a forensic sample of interest, then amplifying specific polymorphic regions of the extracted DNA by means of the polymerase chain reaction. Once these sequences have been amplified, they are resolved either through gel electrophoresis or capillary electrophoresis, which will allow the analyst to determine how many repeats of the STR sequence in question there are. If the DNA was resolved by gel electrophoresis, the DNA can be visualized either by silver staining (low sensitivity, safe, inexpensive), or an intercalating dye such as ethidium bromide (fairly sensitive, moderate health risks, inexpensive), or as most modern forensics labs use, fluorescent dyes (highly sensitive, safe, expensive).[2] Instruments built to resolve STR fragments by capillary electrophoresis also use fluorescent dyes to great effect.[2] It is also used to follow up bone marrow transplant patients.[3] In the United States, 13 core STR loci have been decided upon to be the basis by which an individual genetic profile can be generated.[4]
These profiles are stored on a local, state and national level in DNA databanks such as CODIS. The British data base for STR loci identification is the UK National DNA Database (NDNAD). The British system[5][6] uses 10 loci, rather than the American[7] 13 loci.
Y-STRs (STRs on the Y chromosome) are often used in genealogical DNA testing.

katogorierna är
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