A small trace also helps assess DNA

Genetic experts confirmed that, in cases of burning mourning, just finding a small piece of bone or a tooth can carry DNA identification to identify.

The fact that Ms. Le Thi Huong, in Xa Bang, Chau Duc, Ba Ria - Vung Tau communes, was suspected of being involved in the disappearance of Duong Thi Thuy Binh Ha, 51, former chairman of the Red Cross cum treasurer. Kim Long commune, Chau Duc district for nearly a year has attracted the attention of public opinion.

During the investigation, the provincial police found ash and some teeth believed to be in the garden of Ms. Huong. According to investigators, to make conclusions whether it is a trace of Ms. Ha or not need to assess DNA. The provincial police took samples of her son and her sister's hair to compare.

Police found many suspected plastic bags containing ash
Ms. Ha's core at Mrs. Huong's garden. (Photo: NH)

According to DNA experts, in most cases of burnt mourning, the functional force only needs to find a small bone, or a part like a tooth, hairline . that has not been burnt to even can take DNA assessment.

In the case of burning bodies in Ba Ria - Vung Tau, if the provincial police get dental samples, it can be used to assess the results. Professor Le Tran Binh, former Director of the Institute of Biotechnology, said when testing, people will drill about 5-7 mm to get pulp pulp after enamel and carry out DNA tests. "The pulp is the best part to make DNA," said Professor Binh.

According to Mr. Binh, big bones, joints and teeth, especially fangs, are difficult to burn, just take a bit of the marrow inside this specimen, it is easy to identify DNA. Other types of bones can also help with screening, as long as they are not burned to the point of being inorganic."Snake bones are easy to assess, the number needs 2 knuckles. The neck bone is fine , " he said.

In cases where the above-mentioned samples are not obtained but only ash, ie inorganic substances, the inspection becomes difficult."If only ash, white powder will not be able to do genetic testing," said Professor Le Dinh Luong, Center for DNA Analysis and Genetic Technology.

DNA stands for DeoxyriboNucleic Acid. DNA exists primarily in the cell nucleus, on chromosomes, storing the genetic information of the organism. A piece of DNA carrying genetic information is also called a gene. According to genetics, a body's DNA inherits half from the father and half from the mother, specifying the individual characteristics of each individual.

DNA testing is the analysis and comparison of DNA fragments extracted from body cells such as blood, hairline, tissue, semen, biological traces containing DNA left on the scene, from which to trace committing a victim or identifying a blood relationship.

People can assess DNA through a variety of cells such as blood, oral mucosa, tissue, nails, hair roots, umbilical cord, bone, teeth, sperm . Tests will have the same accuracy as each other, because all the cells in the same body have the same type of DNA.