According to reports, it has been proposed that when kindergarten students enter school, the DNA information of children entering kindergarten and school should be comprehensively collected, and DNA files should be established, and those who do not establish DNA files will not be allowed to enter the kindergarten.
One of the purposes of this measure is also to prevent the recurrence of child trafficking incidents, hoping to control it from the source and completely eliminate trafficking.
In addition, if the DNA information of children entering kindergartens and schools can really be comprehensively collected, there may be no major cases that cannot be solved in the future.
This would have been a good thing, but some people have expressed concern that DNA information will be leaked and bring great harm to the parties involved. In particular, once the information in the DNA information database is leaked on a large scale and is mastered by countries or individuals with ulterior motives, a "genetic war" may break out.
This article takes you to understand the good and bad of comprehensively collecting children's DNA information from two aspects.
DNA anti-abduction work
In 2021, Du Meng, who had been abducted for 33 years, found his family. According to Du Meng, when he was 5 years old, he was abducted and sold to Xingtai, Hebei Province, because he already had a memory, he knew from childhood that he was abducted and sold, and he also knew that he was from Sichuan, but because he was too young and limited in ability, he could not find his family.
After growing up, Du Meng only began to look for relatives, but the process of finding relatives was not smooth, although Du Meng entered his OWN DNA information into the DNA information database, but there was no matching object in the information database, which meant that his parents did not enter their own genetic information into the gene pool.
If it had been in the past, this search for relatives might have been broken, but under modern technology, the police can still rely on Du Meng's genetic information alone to help him find his family.
Dumon is male, and men will inherit the Y chromosome from their father, because the Y chromosome does not have homologous chromosomes, so Du meng's chromosomes are almost exactly the same as the chromosomes of all the males in his family, that is, the Y chromosomes of his grandfather, father, cousin, uncle and uncle are almost the same.
With the help of the "Y-STR test" technology and the "Y Library Family Craftsman System", the police soon found that Du Meng's Y chromosome belonged to the range of Yangbai Town, Tongjiang County.
After finding the general range, the police began to visit the family's people, and finally helped Du Meng find his family. After getting acquainted, I learned that my family did not look for him, but spent the whole year wandering like a wanderer on the way to find his son, but because he did not understand DNA technology, he had not recorded his OWN DNA information and missed the opportunity to reunite with his son as soon as possible.
Like the male Y chromosome, women also have an heirloom: mitochondrial DNA, mitochondrial DNA will only be passed on from the mother to the child, so mitochondrial DNA can be traced to the entire matrilineal family, such as: grandmother, uncle, aunt, aunt's daughter, mother, etc. share the same mitochondrial DNA.
Female young children who are abducted can also trace their maternal blood through mitochondrial DNA and then indirectly find their families.
In this regard, establishing a DNA file can help young children find relatives, and even if the parents of young children do not enter their own genetic information, young children can be located to the family.
Of course, in general, after the child is abducted, the parents will report the crime, and after the report, the police will let it enter genetic information in order to find the child in the future.
DNA solves the case
In addition to helping abducted children return home early, genetic information can also help the police solve cases.
In the past, there were many cases of criminals, in the crime scene left genetic information, such as: the silver case of the criminal Gao Chengyong's genetic information, semen, footprints and other situations have been mastered by the police, and even have his simulated portrait, but it is difficult to find him like a needle in a haystack.
The turning point came when a distant relative of Gao Chengyong was arrested for economic crimes and collected genetic information according to law after being arrested. Through the Y-STR testing technique, it was found that the man was consistent with the Y chromosome of the criminal in the silver case, which indicated that the criminal was a member of the man's family.
So the police investigated all the men of the right age in his family, and finally arrested the criminal Gao Chengyong. Similarly, the NTU case was also cracked through the Y chromosome.
Nowadays, the "Y-STR test" technology is very mature, but few people will enter their own genetic information, and some even a single male in the entire family has entered their own information, so that although the police have their genetic information, they cannot find anyone.
If every school-age child collects DNA information, it will not only have an anti-abduction effect, but also some potential fugitives may be found during the collection process, such as: through the son's Y chromosome, the potential criminals of the father's family have been found.
Of course, when these children grow up, if there is a criminal act among them, as long as they leave genetic information, it is not just as simple as locating the family, it is likely to be directly located to the individual, so that the criminal can not hide.
What about DNA information leakage?
Although DNA information has been instrumental in preventing abduction and solving cases, people are still worried about what if DNA information is leaked?
There is not only our blood relationship hidden in dna, but also our healthy relationship, and even our personality. For example, some people carry the XYY chromosome because of chromosome mutations, and people who have this chromosome are usually prone to violence, so if DNA information is leaked, XYY chromosome people will inevitably be isolated and rejected.
Second, large-scale gene leaks may be exploited by the enemy to start a genetic war. This is likely already happening, as early as 2017, Russia accused the United States of collecting genetic information about Russians, suspecting that they were developing weapons against Russians' genes.
Onishchenko, first vice-chairman of the Educational and Scientific Committee of the Russian State Duma, said:
The United States collects information on the bodily fluids, organs, and other tissues of our compatriots, which shows that it has not stopped its military offensive plans. Russia needs to enact laws that strictly monitor foreign companies from engaging in such activities in Russia and disseminate data abroad.
Although experts say that the current level of science and technology can not develop genetic weapons for specific groups of people, but with the progress of science and technology, once the other side develops such genetic weapons, such as: the development of a virus for a certain nation, for this nation will be a disaster.
Therefore, the collection of DNA information requires people to be cautious, after all, in the current situation of serious leakage of personal information, once the DNA information is leaked, it may cause consequences that people cannot bear.
If a method can be found that does not leak and must limit that people will not misuse DNA information, DNA information can still benefit human beings.