Chapter 471

DNA, the full name of deoxyribonucleic acid, Chinese name for deoxyribonucleic acid, is the atomic material of cells in the human body. Each atom has 46 chromosomes. Male sperm and female egg each have 23 chromosomes. When sperm and egg combine, these 46 atomic chromosomes (23 pairs of chromosomes) create a life.

Therefore, the human species inherits half of its molecular material from its biological father and the other half from its biological mother.

Human blood, hair, saliva and oral cells can be used for paternity testing.

A pair of genes at the same position on the same pair of chromosomes is called an allele. If one is the same as the mother, the other should be the same as the father. If all are the same, the parent-child relationship can be determined. If there are more than three different loci, the parent-child relationship is excluded.

In the technology of DNA paternity test, the accuracy of negating parent-child relationship is nearly 100%??? The accuracy of determining parent-child relationship can reach 99. 99？？？ The possibility of gene mutation cannot be ruled out.)

The forensics extracted Jiang Zhan's blood for DNA analysis, and compared it with the DNA map of Jiang Yunheng preserved in the Heishan fire file 20 years ago.

The result is not. Match.

There is no parent-child relationship between Jiang Zhan and Jiang Yunheng.

This appraisal report is lying quietly on the table in the conference room of the Public Security Bureau of X city. All the people present, except Hu Hu, are surprised. After the surprise, they are excited again.

Jiang Zhan is not Jiang Yunheng's own father, so who is his own father?

Is his biological father the murderer who killed Zhou Bin, Xing Xiaolei and Huang Jian?

This is undoubtedly a huge clue.

However, with clues, it is very difficult to find them.

Jiang Yunheng was 12 years old when he died. He was the same age as the three dead. If he lived, he would be 32 years old this year. In other words, to find out who his real father was, we have to start from 33 years ago.

It's not easy to find out what happened 20 years ago, let alone 33 years ago.

Thirty three years ago, none of the people present except Zhang Youcheng was born.

When people look at her, she is slowly drinking tea. This line is what she found, and her ability is obvious to all. They all hope that she can give the next direction of action.

At this time, Lin Mo walked into the conference room and put a stack of materials in front of Hu Hu. "This is all the files you want about Jiang Yunheng's biological mother."

He put down his tea cup, raised his head and said thank you, then distributed the information to the public, "come on, work!"

When people looked at the materials they had distributed, they all laughed. When it comes to the speed of action, no one can be faster than her.

Jing SA is used to it, and Cao Zhen is used to it. Zhang Youcheng just wants to have a cigarette before reading the materials, while Xiao Lipan, with a serious face, takes out his pen and begins to draw the key points on the archives.

Lin Mo sat down next to Hu Hu. Before others began to look at the files, he had read some of them. He said, "Jiang Yunheng's mother is Chu Li, born in XX. She graduated from Chengnan Normal University in X city at the age of 23. After graduation, she married Jiang Zhan. Jiang Zhan graduated from Chengnan Normal University, one term higher than her, and she was her senior. In February of the next year after her marriage, She gave birth to Jiang Yunheng. "

With that, he handed a photo to Hu Hu.

The woman in the photo is Chu Li. It should be a picture from college. The background is a sea of pear flowers. When she stands in the center, she looks back and is fixed by the camera. At this moment, she is graceful, dignified and elegant. Her skin is very white. Her eyes are as clear and quiet as the clear water waves in autumn. Her body is a little delicate and delicate, Wearing a light pink slim dress, the pink is very pale, close to white, but very charming, just like the most natural and attractive blush on a girl's cheek. I don't know if it's born. Her expression is a little sad, and the water wave in her eyes is like tears, like a delicate flower, which easily causes men's desire for protection.