DNA has advanced which makes investigations more accurate and easier to find. We investigated crimes by taking blood test, a piece of hair, and etc. The two main tests are blood test and testing a piece of hair, which is PCR and RFLP. PCR takes the less amount of time to completed. It takes about a week to completed. It is also the quickest to completed too. Geneticists look for certain types of genes to determine matches. If there is no match that is found, the donor was not at the crime scene. The matches are then not conclusive, but there are also many people who may have the same alleles as the donor. PCR using DNA fingerprinting or profiling. It is considered to be the most accurate test. The test examines section of the DNA base pairs with a high probability of the DNA being the donor. When a match is found, it is a hundred percent sure that the donor was at the crime scene. RFLP requires many sample cells such as hair or a large spatters of blood. The blood has to be fresh in order for it to be test. This tests take about three weeks to three months to complete.
No comments:
Post a Comment