Genetic identification to establish parentage may, under specific circumstances, utilize strands recovered from an individual. These strands, while potentially containing genetic material, pose unique challenges for analysis due to the limited quantity and potential degradation of deoxyribonucleic acid (DNA) present. The success of such testing hinges on the presence of the root or follicle, as this is where viable DNA is most likely to be found. Shaft samples alone are rarely sufficient for reliable results.
The application of genetic testing to determine lineage offers a non-invasive alternative to traditional methods, particularly when other biological samples are unavailable. Historically, blood samples were the primary source of DNA for such analyses. However, the use of alternative sources, such as the aforementioned strands with intact roots, expands the possibilities for confirming biological relationships. The benefits include discreet sample collection and the ability to conduct testing in situations where obtaining buccal swabs or blood samples is impractical or impossible.
