Rebirth of the God-level Xueba

"I won't solve the case." Yang Rui followed Cao Da and explained in a low voice.

Cao Da smiled and said, "Director Yang..."

"It's better to call Yang Rui, my director is not an official position either." Yang Rui said.

Cao Da nodded and said, "Then Yang Rui, you will solve the case without you. We just say that you have new technology now and you want to apply it. Let's discuss it and try to find a case that suits you."

"Will it be too troublesome for the other party." Yang Rui raised his eyebrows slightly.

Cao Da smiled and said, "I am going to introduce you as the Chinese ambassador to Sweden. What can he do if he finds it troublesome."

Cao Da looked at Yang Rui and said, “You don’t have much time. I guess there’s no time to reconnect with each other. It’s better to do something better. Moreover, it is not necessary to let their director take charge of this matter and introduce a subordinate. Just give it to you."

Yang Rui looked in the direction pointed by Cao Da, and he saw several guys in police uniforms.

Cao Da saw Yang Rui relaxed, and then said, "The PCR you said is like a fingerprint, isn't it? Is it more accurate than a fingerprint? How much is similar?"

He needs to know some relevant information in advance, but he doesn't need to know the specific content in detail. The dinner party is just like a wine shop, just the beginning.

Yang Rui pondered Cao Da’s question, and said: “PCR technology is to popularize DNA testing. It is more accurate than fingerprints. If there are suitable biological clues, I mean all kinds of body fluids and hairs. It is much more accurate than fingerprints."

"It's better to have a measure. Foreigners believe this."

"One million times?" Yang Rui shrugged.

The identification of fingerprints until later generations still relies on manual judgment, and the probability of criminals leaving full fingerprints is relatively low. DNA is different. As long as it is not severely contaminated, the accuracy of DNA is extremely high and the repetition rate is lower.

Cao Da was stunned for a moment, and repeated: "One million times this high?"

"Biological technology developed to the back, it was originally an astronomical number." Yang Rui paused and said, "So, if there is a drop of sweat on the ground, give me the matching equipment and collect it from everyone in the room. With one message, I can know who this sweat belongs to."

Yang Rui may be talking about the basic knowledge that children of later generations will know, but to Cao Da, it sounds like a fantasy.

Cao Da took a serious look at Yang Rui and found that he was not speaking big words, and couldn't help but whisper: "Really so powerful?"

"Everyone Americans have landed on the moon, and we can check the DNA of a drop of sweat, which is nothing." Yang Rui is both humble and proud.

In fact, the uniqueness of DNA, or its various characteristics, was relatively clear as early as the 1950s and 1960s. However, the use of DNA testing for judicial identification did not appear until the late 1980s and early 1990s. The key lies in the solution. PCR solves the problem of the amount of DNA.

Before PCR was invented, if you wanted to detect biological DNA, what you needed was not a drop of sweat, but a tube of blood. Even a tube of blood was not enough. You had to store a large amount of DNA-containing substances to mix up enough for detection.

PCR is different. PCR is a non-destructive amplification process. As long as there is one DNA strand, it can double it in a very short time. One unit time becomes twice, and two unit times becomes four times. , Followed by 8 times, 16 times, 32 times, 64 times... and the usual number of cycles of PCR is 25 to 30 times.

The DNA obtained in 25 cycles will be 33.55 million times the original amount, and the DNA obtained in 30 cycles will be 1 billion times. This is a huge amount that a tube of blood or a kidney cannot provide.

In fact, the total number of somatic cells in the human body is less than 100 trillion, which is only the level of 50 PCR cycles. In other words, if a person is twisted and all the DNA is extracted, it is better to let PCR work for 24 hours.

It can be said that with or without a PCR machine, the research methods of human genetics are completely different, which is a reflection of proper generation difference.

The invention of PCR can win the Nobel Prize without any problems.

From the perspective of Yang Rui's future generations, PCR will definitely win the Nobel Prize even without operation, because its value is also cyclically amplified. By the 1990s, in the 21st century, and in the 10s, it became stronger and stronger. Why Han Chunyu’s pseudo-achievement can be called the Nobel Prize is because it shows a more efficient genetic tool, and PCR is the original super-efficient genetic tool.

At the age of Yang Rui, he can definitely wait until PCR to win the Nobel Prize in his lifetime. If it didn't work in the 80s, it was in the 90s. If there was no hope in the 90s, then another ten years or ten years would pass. As long as people live, the hope of the Nobel Prize will increase day by day.

It's just that Yang Rui didn't want to wait anymore.

Whether there is a Nobel Prize in scientific research and political treatment are very different.

Yang Rui nowadays in China, whether he is asking for funds or seeking staffing, he has to describe his work and introduce his achievements over and over again, but if he has the Nobel Prize, it will be a completely different world. It's not a joke to run over on legs.

In theory, the Nobel Prize winners who are fighting on the front line can get a steady stream of resources, which is exactly what Yang Rui desires.

In contrast, how about making 100 billion yuan? It's not about thinking about reinvesting every day. In the end, it's not about wills and donations. You have to dedicate your little time to the foundation before you die.

Ambassador Cao looked at Yang Rui's confident expression and couldn't help but smile, and said, "I will leave it to you next."

While they were talking, the two had already arrived in front of the Stockholm police chief.

"Director Sherwood, welcome to the Chinese Embassy." Cao Da had known the director's information from his assistant a long time ago, and in a few words, he introduced Yang Rui to the other party.

Today is the time when China and Sweden have the most cooperation. The Swedes’ indifference is accompanied by politeness. Director Sherwood also nodded to Yang Rui in a polite manner.

"When I came to Sweden, I heard people say that the Swedes don't like greetings, and I should be more direct when I speak." Cao Da is stout but has long sleeves and is good at dancing. In the simplest way, he turned to say: "Director Sherwood, Mr. Yang Rui hopes to try his new technology in Sweden. Would you like to listen to it?"

"New technology?" Sherwood's cheeks were red, and she drank another glass of whiskey in a blink of an eye.

Yang Rui took the conversation and said in English: "I want to use PCR in criminal investigations. This is a very useful technology that can identify suspects more easily than fingerprints. However, this technology has a certain cost. It's not suitable for promotion in China yet, I want to try it in Europe."

Swedes are very good in English, especially government officials, who can basically use English proficiently.

When Yang Rui said what he said, Cao Da couldn't help but feel a little anxious. Why did he do the news well, he talked about money again.

He did not understand Yang Rui's scruples.

If it is to make a big news and make a profit at a loss, the academic circles may think of him, it is better to make a simple business.

Moreover, Yang Rui believes that the value of PCR can attract Sherwood if he is not dazzled by alcohol.

Immediately afterwards, Yang Rui used as simple as possible sentences to describe the use and meaning of PCR, and focused on giving examples: "For example, if you have a **** case on a train, the victim cannot identify the murderer, so we can treat all men in the car. Collect DNA and compare it with ***, you can directly identify the murderer."

Cao Da was in the audience for a while. Is it really okay to talk about this when you meet?

Yang Rui just couldn't see Cao Da's expression.

Based on his experience these days, the Swedes are not shy about talking about sex. Just like their TV station, the Swedes are famous for talking about **** in public, and their openness often makes Americans feel ashamed and scornful. , Let alone their professional attitude when talking about professions.

Director Sherwood didn't feel that what Yang Rui said was problematic, but aroused interest, and said, "I understand what you mean, among a group of suspects, can you determine which one it is?"

"With biological traces, yes." Yang Rui explained his sweat theory as if he had told Cao Da.

The Swedes have always liked new technologies, just like they turned American goods into one-off products. They spare no effort in the development of new technologies. It is also because of this that they can build an independent design and manufacture of the latest fighter aircraft with a scale of 9 million people. country.

Director Sherwood was a little concerned about the technique Yang Rui said. This part was because of Yang Rui's explanation, and the other half was because he had heard of Yang Rui's reputation. He came to the Chinese Embassy for a dinner, and he would naturally hear about the celebrities here.

Director Sherwood asked half curiously: "If there is a drop of blood, you can also find out who it belongs to. Does that mean?"

"Yes." Yang Rui said affirmatively: "Any tiny biological trace will do."

"Forgive me, if my guess is correct, can my hair be?"

"Yes."

"In this case, we really have a case that may be able to use your new technology." Director Sherwood was a little concerned, and said: "We had a murder in a nearby town, and our detectives searched for it. The whole town, but there was no clue, and then there were two more cases with no results..."

"You're talking about the Marle case." The person standing next to him immediately called out his name.

Director Sherwood nodded and said: "We have the clothes used by the murderer, and the murder weapon. I think we can find hair on it, but the number is probably not too much.

"The Marle case is three consecutive homicides."

"Three people died in a small town in two months. When we first heard about it, we were all terrified."

"I heard it was done by people in the small town."

When the word "Marle" appeared, everyone around was in awe.

Obviously, for the Swedes at this time, this is a famous case.

Yang Rui also worked up his mind and asked, "Is the murderer located in the small town?"

"Yes, Marle is a lonely town. There is only one access to Stockholm. The residents of the town are very fixed and united. You know, this is a typical Swedish town. So when everyone realizes that there is a murderer in the town At the time, everyone was uncomfortable.” Director Sherwood looked at the people around him, and paused for a while: “The Marle case is therefore very popular across Sweden. If your technology can find clues, it would be great. Up."

On the snowy ground, far away from the earthly towns, it is not only a typical Swedish town, but also a typical Nordic town.

Yang Rui nodded without hesitation: "Director Sherwood, if you are willing to try new technologies, I can persuade Huarui to do the testing at cost."

Cao Da coughed twice and said in Chinese: "Yang Rui, don't talk about money at this time."

Sherwood didn't take it seriously, and asked: "How much budget do you need?"

"Each test is about 3000 kronor." Yang Rui's ability to offer this price still relies on his patented high-temperature polymerase.

Even so, Cao Da was taken aback by the price. Even in a sparsely populated Nordic town, there must be at least hundreds of people ~ www.wuxiaspot.com~ A small town that can kill three people does not sound too much. Few people.

Sherwood calculated it, and said: "One person does a test. There are less than 1,000 people in Marle Town, which is 3 million kronor. Is this calculation?"

"Almost, for accuracy, some people will do it twice, but the total will not increase too much."

Sherwood pondered, "Sounds good."

Yang Rui guessed that he might not want to decide this matter at the banquet, so he drove on the iron: "Chief Sherwood, can we arrange a time for me to go to the police station to explain it to you personally."

"Oh, this is a good idea." Sherwood immediately agreed to hear that he could try it.

?? 3590 words, that's so long!

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(End of this chapter)