What are the methods of paternity testing

In the old days, there were blood drops to test paternity, now technology has advanced, do paternity test is also much more accurate, so what are the methods of paternity test?

1, the traditional paternity test is to conduct a blood type test. Generally the child 6 months or more can do, and need a large number of blood samples. This method is a cumbersome process, painful sampling and high error rate. Traditional blood typing has its place to a certain extent, but paternity testing does not follow blood type.

2, DNA paternity test. DNA paternity test is through any human tissue sampling (such as oral epithelial cell sampling), can also be carried out before the child is born. This method is one of the most accurate of the current paternity tests - with an accuracy rate of 99.99999% - and is compact, simple, fast, economical and practical. Relative Chance of Paternity (RCP), in accordance with the practice of paternity testing at home and abroad, when the RCP value is greater than 99.73%, it can be assumed that the hypothetical father and the child have a biological relationship.

3, SNP testing. Current DNA paternity testing using the human genome in the repeated base sequence (STR as the second generation of molecular markers) and PCR technology for individual identification, but STR has great limitations, SNP is the third generation of molecular marking technology is the direction of development in the future, the United States 911 identification of the body that is the use of this technology.