DNA testing and information to know

DNA testing is a test that uses DNA (DeoxyriboNucleic Acid) in our body's cells to determine blood relationships. According to genetics, 23 single chromosome strands are present in a mother's egg cell and 23 single chromosome strands in the father's sperm combine to form 23 pairs of chromosomes found in the child. 23 pairs of these chromosomes are present in every cell of our body (except adult sexual cells). DNA testing allows us to test the blood relationship most accurately today.

1. What is DNA?

The DNA molecular structure is like a twisted ladder made of two strands, known as a "helix". The strands of DNA contain information in the form of a code, which in turn determines the characteristics of each individual and the characteristics of each person's body. There are four types of building blocks on DNA (A, T, G, C) and their order is human genetic code.

Half of a person's DNA is inherited from his mother, and half is inherited from his father. However, while fingerprints are not valuable for establishing family relationships, the genetic codes contained in the DNA sequence are valuable for establishing family relationships, because they are inherited. enjoy from the previous generation.

The DNA molecular structure is like a twisted ladder made of two fibers.

2. Is DNA testing, DNA testing and DNA analysis different?

Absolutely no difference is our DNA analysis.They differ only in names.

With DNA analysis in criminal science to serve the task of tracing individuals to identify criminals, it is called DNA assessment. For guest purposes, it can be called DNA analysis or DNA testing.

3. DNA testing determines how blood relationship is performed?

By analyzing DNA of two individuals (suspicious of blood relations) to determine their genetic information. Each person's genetic information inherited half from his father and half from his mother. By comparing their genetic information, their blood relationship can be identified.

4. Why does DNA testing work under ISO?

DNA testing is a field that requires high accuracy. Each result of a blood test DNA changes the life of one or more people, so it is important to make sure that the test is done as accurately as possible.

All processes of sample collection, DNA extraction, DNA analysis and reading results are made and controlled according to a standard procedure, from which the results are of the highest accuracy and stability.

Comparing genetic information with each other will determine blood relationship.

5. At what age can samples be taken for DNA analysis?

DNA analysis that determines paternity can be done at any age and a child can be safely taken at any age after birth.

6. Is sampling easy?

Very easy . DNA samples were collected according to the sampling instructions. Samples can be taken as blood cells, oral mucosa (cheek cells), hair with legs, nails, toenails, and umbilical cord after falling .

With two sets of blood sampling and oral mucosal cells we provide sampling in just a few minutes per person and are completely safe and painless.

7. How accurate is the DNA test to determine the relationship?

DNA testing determines blood relationship is the most accurate method today. If the mother's DNA samples, the offspring and questionable genes matched in each gene, the blood relative accuracy was 99.9999% (with 16 locut genes) and reached 99.99999998% (26locut genes).

If the child's DNA sample and the suspected father do not match each other with two or more genes, then this man is not the father of the child with 100% accuracy.

8. Does the mother need to participate in the test?

Depending on the case . Determining blood relationships by performing DNA analysis may not need a mother. If the father's DNA samples are questionable and the child does not match each other with two or more genes, the chances of the man's father being excluded are 100%. If the samples match, the chances are that the man is 99.999% or higher.

In the case of suspected parental DNA samples and unmatched offspring of 1 to 2 genes, it is necessary to require further analysis of the mother's sample.

Note: Further analysis of the mother's sample will have conclusions for both cases that are systematic and not related to 100% accuracy.

DNA testing determines blood relationship is the most accurate method today.

9. Does the world have kits to determine the system?

There are many manufacturers of kits used for DNA testing. Depending on the quality that people use. Currently there are many manufacturers of kits used in the world. But only the Identifiler systems from Appliedbiosystems - the US are the most commonly used and are the FBI CODIS standard kit, USA . The advantage of this kit is its high sensitivity, clear analytical signal, so the result is of the highest accuracy.

Here are some reputable DNA testing addresses:

In Ho Chi Minh City

1. Criminal Science Institute, Ministry of Public Security (Address: 258 Nguyen Trai, Nguyen Cu Trinh Ward, District 1, HCMC).
2. Blood Transfusion and Hematology Hospital (Address: 118 Hung Vuong, Ward 12, District 5, HCM).
3. Medic-Lab (contact 0903942737, address: 254 Hoa Hao, district 10, HCMC).

In HN

1. Genetic Inspection Center (Ministry of Public Security, No. 99, Nguyen Tuan, Thanh Xuan, Hanoi).
2. Military Forensic Institute (1C Tran Thanh Tong Street, Hai Ba Trung District, Hanoi).
3. Center for DNA analysis and genetic technology (108 Vinh Phuc, Ba Dinh, Hanoi).
4. Gentis Company (Room 1207, Building M5, 91 Nguyen Chi Thanh, Dong Da, Hanoi).