What does paternity test fga mean? The repetition of compound tetranucleotide found the third intron of human fibrinogen gene, which was located in the long arm of chromosome 4. FGA is also called FIBRA or HUMFIBRA in the literature. This site contains degenerate repetitions of CTTT wing measurements. Its allele range is wider than any core STR locus. The reported alleles ranged from 12.2 to 5 1.2, with a span of 35 repeats. The loss of CT before core replication leads to the generation of x.2 micro-variant allele, which is very common at this locus. Fga plays an important role in paternity test results.
The theoretical basis for judging biological kinship is Mendel's inheritance of separation phenomenon. According to this rule, when gamete cells are formed, pairs of alleles are separated from each other and enter their respective gamete cells respectively.
Genetically, the two genomes in a child come from the mother and the father. The corresponding allele is also one from the mother and one from the father. In paternity testing, if this rule is met, there will be a biological relationship; If not, there is no blood relationship.
Paternity test In most cases, the relationship between mother and child is certain, and only paternity test is needed. The judgment method is to exclude the same genes of the child and the mother, and then match the remaining genes with the father. If the matching degree is high, there is a biological relationship; If the matching degree is not high, there is no biological relationship.
Paternity appraisal requires all adults to voluntarily agree to the appraisal, and teenagers above 14 should seek their opinions on the appraisal appropriately; The appraiser should be composed of mother and son-suspicious father or parents-son, and only the appraiser of father and son or mother and son generally requires to explain the reasons for the appraisal; Appraisers should know that they or their close relatives have a clear history of transmission, so as to provide reference for identification (genetic diseases are easy to mutate).
DNA paternity. DNA paternity is taken from any tissue of human body (such as oral epithelial cells), and can also be performed before the baby is born. This method is the most accurate one in the parent-child test at present-the accuracy rate can reach 99.99999%, and it is exquisite, simple, fast, economical and practical. According to the practice of paternity test at home and abroad, when the RCP value is greater than 99.73%, it can be considered that the father and the child have a biological relationship.
I believe that after reading the above contents, everyone should know that the time required for paternity testing is not very long, and it usually takes about a week. If you encounter special circumstances in your life and need a paternity test, it is recommended to go to a professional appraisal institution as soon as possible, prepare a series of required materials, and then wait for the results.