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Genetic testing, also known as DNA testing, is used to identify changes in DNA sequence or chromosome structure. Genetic testing can also include measuring the results of genetic changes, such as RNA analysis as an output of gene expression , or through biochemical analysis to measure specific protein output. [ 1 ]
Though genealogical DNA tests are not designed mainly for medical purposes, autosomal DNA tests can be used to analyze the probability of hundreds of heritable medical conditions, [79] albeit the result is complex to understand and may confuse a non-expert. 23andMe provides medical and trait information from their genealogical DNA test [80] and ...
Today's improved genetic testing can help African Americans pinpoint their ancestry with greater precision than ever.
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.
[39] [40] Testing may be beneficial whether the test identifies a gene change or not. A negative result can eliminate the need for unnecessary checkups and screening tests in some cases. A positive result can direct a person toward available screening, management or treatment options. [41]
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