Deng Yajun
In the nearly 20 years of his career, DNA appraiser Deng Yajun has witnessed too many twists and turns and bizarre stories: twins are half-siblings, and three generations of grandchildren are actually a family of three...
Are the DNA appraisers known as marriage shredders the breakers of marriages or the achievers of feelings?
The road to DNA identification is a no-brainer
In the 1990s, China's genetics and science were still in its infancy, and for most people, the occupations related to them were "unpopular majors."
Deng Yajun was born into an ordinary family, and as a girl, her parents wanted her to have a stable job. However, Deng Yajun was born rebellious, and despite the opposition of his family, he resolutely embarked on the road of "forensic identification".
After graduating from school, Deng Yajun followed the police internship and assisted the relevant departments to crack many criminal cases together. Since then, Deng Yajun has begun to use his knowledge to achieve the purpose of saving people, and the sense of accomplishment brought by it is an unprecedented experience. "My role has been fully fulfilled, and the sense of accomplishment is bursting," Deng Yajun said.
In the ninth year of graduation, Deng Yajun received a doctorate from Xi'an Jiaotong University. Prior to this, in order to pursue a degree, Deng Yajun resigned from the unit. Now that she's done with her studies, she needs to face a new choice: Do she want to return to her former forensic position?
However, as a woman, even though Deng Yajun has strong practical ability and rich theoretical knowledge, there are still many inconveniences in the face of on-site investigation tasks and dirty and chaotic environments.
In fact, there are many careers available for Deng Yajun to choose from, such as forensic clinical, forensic pathology, forensic forensic evidence identification... However, Deng Yajun has always been fond of experiments, as she said:
"Forensic clinical and pathological things need too much subjective things in it, and in a third-party appraisal agency, it is not as good as one or two in the laboratory."
Yes, after careful consideration, Deng Yajun chose to take a back seat, enter the DNA industry, enter the laboratory, and become a professional appraiser.
A neutral dress, short hair, a pair of glasses, capable and serious, this is the first impression that Deng Yajun left on everyone. China's first generation of DNA appraisers, female doctors, female forensic doctors, countless labels, witnessed the glory of Deng Yajun.
However, when he really entered the DNA identification industry, Deng Yajun realized how broken the false feelings he painstakingly managed in the face of scientific truth.
Deng Yajun's profession often helps people do paternity tests, and the final appraisal results are often the truth that the parties do not want to see. At the same time, Deng Yajun, who has a warm heart and is based on the truth and facts, has also quietly changed in his heart.
In 2004, shortly after Deng Yajun entered the DNA appraiser industry, she met a person she would never forget. At that time, Deng Yajun was working at the laboratory, and a young and beautiful woman approached her and said:
"Dr. Deng, I'm sorry, I was wrong before, I shouldn't have used the child's hair for identification, today I brought the child here, and the blood was drawn on the spot for examination."
Deng Yajun was stunned for a moment, somewhat unclear. She looked at the woman for a moment, then turned her gaze to the man and the child behind her.
The men were gray-haired, old, and looked nearly old, while their children were very young. Deng Yajun realized that this was a combination of a pair of "old husbands and young wives".
Deng Yajun did a test for the parties according to the process. During this time, men and women were like glue. The woman leaned into the man's arms the whole time, and the husband cried very intimately.
It took a while for the DNA comparison results to be officially released, and the next week Deng Yajun received a letter from the woman. In the letter, the woman said that she and her husband were originally teachers and students. Later, the two fell in love, and the relationship has been very good.
After marriage, the woman gave birth to a child for her husband, and the life of a family of three was poor but happy. The woman also specifically mentioned in the letter that this DNA identification report is very important to herself, so she must see the identification results of the "biological father and son".
The woman was afraid that Deng Yajun would not compromise, and threatened her: "If the results of the report do not meet expectations, I will go to a professional appraisal agency abroad and sue you to bankruptcy!" The first time he faced such a naked "threat", Deng Yajun's heart set off a ripple.
Yet the qualities of a professional DNA appraiser always reminded her that facts are facts and should not be tampered with in any way. Yes, Deng Yajun made up her mind that no matter what the final result was, she would tell the truth.
Later, Deng Yajun accidentally met the woman's husband. He drives a luxury car and transports his son to and from work every day. Deng Yajun learned that the child's tuition fee can reach 200,000 or 300,000 yuan a year.
The affluence of men obviously has nothing to do with the poverty of the female population. At this time, Deng Yajun realized that the so-called teachers and students, the so-called feelings, were just lies fabricated by women.
When the DNA comparison results came out, it showed that it was not paternity. Deng Yajun told the truth, but the woman completely broke out. She changed her usual meekness and publicly declared war on Deng Yajun: she would sue her until bankruptcy.
The young Deng Yajun did not understand why women tried their best to cover up the relationship between their sons and husbands, even at the expense of threats.
It turned out that the two were just boyfriend and girlfriend, and there was no marriage relationship. However, men have hundreds of millions of dollars, and women try their best to conceive children.
Once this child has nothing to do with the rich, the woman will also rub shoulders with hundreds of millions of dollars of property. Deng Yajun's scientific appraisal report completely turned a woman's dream of riches into ashes.
Facing the game of wealth and feelings for the first time, Deng Yajun's heart was quite touched. In the face of absolute interests, feelings are so vulnerable.
And the bloody truth presented by the DNA report is too many people to face. Some are sober, some are disguised, some are angry. Sweet and sour, bitter and spicy are all the changes in life that Deng Yajun witnessed with his own eyes.
Marriage shredder
The emotional mystery is not unique, and in the years of his career, Deng Yajun has also encountered many "bizarre" events.
Outside the door of the delivery room, the baby was crying, and the anxiously waiting man immediately rushed forward, but the light in his eyes was extinguished at the moment he saw the child. Just now, the man became the father of a pair of dragon and phoenix fetuses, but the appearance of the two children had no resemblance to him.
Are this pair of dragon and phoenix babies their own biological children? In order to dispel the doubts in his heart, he found Deng Yajun with two newborn babies.
Deng Yajun made an appraisal for them according to the process, and the final result surprised everyone. One of them was indeed the man's biological child, but the other child had nothing to do with him from the DNA comparison.
The dog blood plot that appears in the novel is staged in reality, making everyone feel unreal. In fact, this pair of dragon and phoenix fetuses is heterozygotic.
Twins have two conditions, one is an identical cell and the other is an alien cell. The same fertilized egg forms two embryos when it splits, and the child grows into similar twins after birth.
If two eggs are combined with two egg cells, two heteroovate cells are formed, which is also the formation process of most dragon and phoenix fetuses.
A woman mostly lays one egg a month, and in special cases it is possible to produce two or more eggs. If a woman produces two eggs and has a relationship with two men in a very short period of time, it is possible to produce a pair of dragon and phoenix fetuses. Obviously, men face the problem that their wives have cheated on.
Hearing this result, the man frowned, and for a moment he was a little confused. Deng Yajun's heart was sour, and he could only comfort: "Then you are very lucky, at least one of the children is yours."
The man laughed bitterly and walked quickly to the woman's bedside to take the DNA identification sheet and questioned, the woman was dumbfounded, and could only quietly wipe her tears with her head down.
The immediate family conflict arose because of an appraisal, and the numbers on the report sheet told everyone how cruel it was that the mistakes that parents had committed were borne by their newborn children.
Deng Yajun did not know what the future of the family would be, nor did she know the ins and outs of the matter, the only thing she could do was to tell everyone the truth and give them the only comfort. However, the shock of Deng Yajun's more than 20 years of practice seems to have no end.
Deng Yajun once received a family of five, they came from the countryside, specifically found Dr. Deng Yajun, hoping to do a DNA identification.
It turned out that, because of poverty, the child's grandfather had once married an intellectually handicapped woman. Perhaps for genetic reasons, the two sons born also have intellectual disabilities. Fortunately, the newborn grandson is intellectually sound.
The child's grandfather was very happy, but he did not expect that the people in the village were talking about it. In the eyes of everyone, the grandson's intelligence is normal, which proves that he is not the biological child of the old man's son, and the child's biological father is most likely a grandfather.
The old man could not stand the gossip and took the family on a train to the city. Although he knew that the trip cost a lot, for the sake of his innocence, the old man still made up his mind.
When they came to the laboratory, the old man carefully consulted about the relevant matters, and the staff could not help but feel pity. How could such a simple and cautious family be as unbearable as the villagers said?
Deng Yajun learned of this, but always remained calm. In the past 20 years in the industry, she has been accustomed to seeing too many disguises. At the same time, she knows that the only thing worth believing in is the data itself. She took separate samples for adults and children and then performed specialized tests.
After DNA comparison, it was shown that the child was indeed born to the mother, and the father had someone else, not the son of the old man, but the old man himself. That is to say, the old man once had a relationship with his daughter-in-law.
The original ordinary DNA identification actually faced an ethical and moral condemnation.
Behind this intricate relationship, facing the darkness of human nature, it also witnesses the unbearable temptation. The old man who originally wanted to block the mouths of the people with DNA identification reports really became the people who disregarded ethics and morality in the mouths of the villagers.
How will the future family of five continue to survive in the village? Deng Yajun did not know, but more and more experiences made her understand how vulnerable human nature is in the face of the truth.
The responsibility of DNA identification is a long way off
Just entering the field of DNA identification, Deng Yajun also fell into a brief confusion. She has seen incest and little three, personally experienced countless disputes, and feels that her three views have been completely subverted. As a bystander, Deng Yajun felt that it was difficult to accept, and for the parties involved, the cruelty of the truth was doubled.
Deng Yajun met a couple, both of whom were not tall, but their son was very tall. Relatives and friends often ridiculed, and the father of the child laughed it off.
At a party with friends, the father was drunk and heard one of the good friends say, "Your son is mine." The father was furious and beat up his friend, but the seeds of doubt were planted in his heart.
Later, the father was suspicious and took the child to the hospital for a paternity test, and the results showed that the two were biological fathers and sons. The father was very pleased, but his relationship with the child and the mother was getting farther and farther away.
The moment the seeds of suspicion are planted, it means a loss of trust. Both loyal wives and children can't accept the distrust of others, and the family that was originally in love is eventually torn apart.
At first, Deng Yajun was sad about the weakness of human nature, but as the experience of life continued to increase, her confidence gradually returned to calm: "This kind of case is quite common, nothing unusual." Despite facing many doubts, Deng Yajun's enthusiasm for DNA identification has not faded.
Deng Yajun said that 2005 is a key year for the development of DNA in China, in order to promote the DNA cause to a higher level, Deng Yajun spent a lot of time to sort out the development of the entire project. In order to let more people understand the cause of science, Deng Yajun also gave speeches everywhere, popularizing STR and touching DNA for people...
In fact, after years of engaging in DNA identification, Deng Yajun has not resolved all family disputes. Suspecting that his wife and husband are cheating is just the tip of the iceberg of Deng Yajun's work.
At the same time, old cases, replacement of second-child certificates, changes to settlement information, and even the search for owners of cats, dogs, and dogs all rely on DNA testing to achieve this.
Because of the long time and complicated relationship, Deng Yajun's work also faced great difficulties. However, Deng Yajun is never afraid and likes to face difficulties. For example, she once led her team to overcome the difficulties of mammalian paternity testing.
Prior to this, due to technical limitations, one could only identify the relationship between cows and calves. However, Deng Yajun and his men completed the paternity test of the calf and the bull by designing the cow's STR.
The news that Deng Yajun had overcome the animal difficulties attracted widespread attention from everyone, and information from all directions also flocked to it. Traffic police in Shaanxi Province specifically contacted Deng Yajun and asked her to identify a rabbit that had been crushed to death by a car.
"They identified two suspect vehicles and let us identify the perpetrator through the rabbit muscle tissue stained on the car," Deng Yajun felt was very novel when mentioning this matter.
Over the years, Deng Yajun has also relied on DNA identification to find his biological parents for long-lost children. Looking at the moment of father-son reunion, Deng Yajun will always be very satisfied.
At present, China's DNA identification industry is developing rapidly, but it is undeniable that we still face many problems that have not yet been solved.
The judge of the Cixi Court in Zhejiang Province entrusted Deng Yajun to do a "giant" paternity test. An elderly man living alone in Zhejiang died, leaving behind a deposit of 1.5 million yuan and a property. According to the inheritance law, the inheritance is inherited by the elderly's sister and nephew.
To everyone's surprise, a woman in her 30s suddenly came to the door and said that she was the old man's long-lost daughter. In order to ensure the fairness of the inheritance, Deng Yajun decided to do a paternity test for the woman.
However, the old man's body had long been cremated and dna samples could not be taken. In desperation, Deng Yajun could only do DNA identification for the sister of the woman and the old man.
"According to genetics, the relationship between aunt and nephew cannot be fully confirmed, the technology is limited, and this matter can only be visited by a judge", referring to this matter, Deng Yajun still regrets that he failed to rely on scientific strength to solve the problem. Just mentioning the future, she is still full of confidence.
In the eyes of friends, although Deng Yajun has witnessed too much darkness, he is always a positive person. She loves to run marathons, take her employees around, and is an absolute optimist.
Witnessing countless family conflicts and detecting many men being put on green hats, Deng Yajun still believes in family affection and love, as she said: "I never use paternity testing as a medium to convey faith." ”
As a DNA appraiser, Deng Yajun bears the responsibility of truth and science, which is cold and serious. However, Deng Yajun himself has always had a positive heart and is optimistic and optimistic to become a brave person in life, which is admirable.
Resources
[1] "Love, Marriage and Family", January 1, 2020, "DENG Yajun, DNA Expert of the Chinese Academy of Sciences"
[2] "Marriage and Family," November 1, 2017, "Listening to Paternity Testers, Those True but Unknown Stories"
[3] CCTV, May 30, 2012, "Deng Yajun: Behind the Deciphering of the Code of Life"