Introduction to paternity testing
Paternity testing is a genetic testing method that determines whether there is a genetic relationship by testing the match of DNA. It is a common forensic, medical and biological testing method in modern society, and plays an important role in solving family problems and maintaining social justice. Paternity testing can be done in a variety of ways, a few of which are described below.
Oral mucosal cell collection method
The oral mucosal cell collection method is a simple, non-invasive and safe method for paternity testing. The collector only needs to gently brush the oral mucosal cells with a special brush in the mouth, and then retain the samples and submit them to the identification agency for testing. This method can not only perform genetic testing, but also detect some basic biochemical indicators with high accuracy. Therefore, this method is a relatively simple way to test paternity.
Blood collection method
The blood collection method requires professionals to collect blood. Sufficient blood (5mL to 10mL) needs to be provided when sampling, and the blood sample needs to be stored in a test tube or a hemagglutination tube, and then couriered to a professional identification institution for testing. Blood samples are rich in content, with high gene extraction efficiency and high accuracy. In the detection of genetic diseases and paternity testing that require higher accuracy, the certificates issued by them are more authoritative, so they have always attracted people\’s attention.
Hair/nail collection method
The hair/nail collection method is simple, non-invasive and painless, and multiple collections will not have adverse effects on the person being tested. When sampling hair/nails, care should be taken to ensure that they are clean and not contaminated by chemicals or other substances. Hair/nail samples contain dander, blood and other substances, and are very sensitive to the detection of volatile substances, so they have an advantage when deciphering static evidence (such as DNA comparison at crime scenes).
Population database comparison method
The population database comparison method is a new type of DNA identification method. It relies on social groups, geography and other characteristics to construct large-scale genetic databases. By comparing the similarity between the new sampling data and the personal information in the original database, it can infer that a certain person has Possibility of identification or title of a person. The population database comparison method has strong identification ability and the potential to infer the origin of blood samples such as race in a short time, and has broad application prospects in future DNA identification.
Summary
There are currently many testing methods for paternity testing, such as oral mucosa cell collection method, blood collection method, hair/nail collection method, and population database comparison method, etc. Each method has different advantages and applicable occasions. The specific detection method should be selected based on the required accuracy, convenience, safety, price and other factors. Before using any paternity testing service, you should determine the professionalism, accuracy, and service quality of the testing agency.
