Li Yun looked at it at a loss, and in an instant, Huangfu Jingshu's soft and boneless hand grabbed Li Yun's arm, and with a weird smile, he bit Li Yun's arm without hesitation.

When Li Yun felt the pain, he realized that Huangfu Jingshu was biting him, and Li Yun couldn't bear to beat Huangfu Jingshu away at this time, so he could only endure it silently.

Huangfu Jingshu bit for almost a minute, the tooth marks were a little deep, and the skin on Li Yun's arm could be vaguely seen at the edge of the limit of toughness.

In an instant, Huangfu Jingshu let go, and then left a deep tooth mark, as well as a small pool of Jinjin jade liquid, although Li Yun was in pain, but there was no squeak, and the clothes looked at Huangfu Jingshu with a melon face.

"Jingshu, which one are you coming from! Didn't you eat in the morning? Li Yun said helplessly.

Huangfu Jingshu looked at Li Yun a little arrogantly, and said, "Don't you think I'm a lady now!" ”

Li Yun suddenly regretted for a while, why did he talk like that?

"Lady, very lady." Li Yun said.

"That's right, why am I being nice to you, you're still uncomfortable, you have to be comfortable if I quarrel with you, aren't you?" Huangfu Jingshu said with some resentment.

At this time, Li Yun didn't understand the meaning of Huangfu Jingshu's words, let alone Huangfu Jingshu's inexplicable behavior, he had to take a bite of himself in the winter, but soon after, Li Yun inadvertently knew the meaning of that action.

"I'm convinced of you, I'll pick you up at three o'clock in the afternoon, no." Li Yun said.

"Then you won't be here after class in the morning! You're not afraid of any danger to me! You forgot that I was kidnapped by those guys at school last time. Huangfu Jingshu said this to Li Yun and expressed her doubts, but more often than not, she wanted to see Li Yun, after all, she was the third lady of the Pangu Group, and her figure was there.

"Don't be afraid, I'm your guard now, and I will naturally try all kinds of ways to confirm that you are safe, don't forget that I am a top student majoring in applied science, and some small means are more than enough." Li Yun said very confidently, because the rover had been tracking Huangfu Jingshu, but Li Yun now had a new idea, which naturally had something to do with the Tianyan system.

But at this time, Li Yun couldn't tell Huangfu Jingshu, after all, this belonged to the secret of the Xuanlong Society, and the rover couldn't be said, and there was no mystery after saying it.

Huangfu Jingshu looked at Li Yun and said, "You are so confident, if I am in any danger, it will be too late for you to regret it." ”

"Don't worry, without that diamond, I naturally won't stop that porcelain work, and I will never do anything that I regret, you will always be in my field of vision, unless one day I'm gone." Li Yun said a little ambiguously at this time.

After hearing this, Huangfu Jingshu's heart was slightly touched, and then she said a little coldly and coquettishly: "Aren't you alive and well now?" You're not here, you won't die when Sun Wukong is dead, okay, I'm going to get ready to go to class, my morning class is also very important, I won't tell you, let's go. ”

With that, Huangfu Jingshu turned around elegantly, injecting a trace of warmth into the cold air.

Li Yun looked at the back of Huangfu Jingshu leaving, and the inexplicable feeling became more and more intense.

……

Bisheng Building, large classroom.

In the position of the blackboard in the large classroom, the projector projects an image, and an animation of a dynamic demonstration of the double helix structure of a DNA molecule appears in front of all the students.

A middle-aged man in a tweed coat with neat hair stood on the podium, holding an infrared pen in his hand, pointing to a broken base pair on top of the projection animation, and then to the deoxynucleotides on either side of the base pair.

"Now I am pointing to the base pair formed by the free hydrogen bond, which firmly connects the two deoxynucleotides in parallel to ensure the relative stability of the double helix structure of the DNA molecule.

Deoxyribonucleic acid, that is, DNA, carries the genetic information of all organisms, and the purpose of our genetic modification is to isolate DNA from biology through scientific means and benign development perspective, through biological science and technology, and then rearrange and combine, delete or add different chromosomes, and modify the original genes, so that the modified genes can work in the receptor and interfere with the genetic characteristics of the organism.

But everything is positive and negative, and the pros and cons are opposite. Genetic modification is also immature, which requires more developed high technology to improve genetic modification. The middle-aged teacher with a clear eye said in a straight voice.

Li Yun looked at the double helix structure diagram of the DNA molecule in the projection, and some information was constantly flashed in his mind, and in an instant, Li Yun felt that the structure diagram was somewhat related to the inner Dao skills in the "Great Yin Rune Sutra" that he had cultivated, because the direction of some of the twelve qi seemed to be the same reason.

But at the same time, Li Yun instantly had a question, and just when Li Yun was thinking, the middle-aged teacher suddenly continued: "Genetic modification in biotechnology is an important science, and it has the significance of changing the physique of organisms and can benefit people. ”

After the middle-aged teacher finished speaking, Li Yun couldn't suppress the doubts in his heart at this time, and then raised his hand, the middle-aged teacher saw Li Yun raise his hand, looked at it carefully, and said, "The classmate who raised his hand is Li Yun." ”

"Teacher, you know me?" Li Yun asked suspiciously.

"People majoring in applied science don't know who the president of the ice engineering university is, but no one should know about you! Professor Tian took the initiative to send you an invitation, and took the initiative to reject the invitation of Pangu Group, I don't think there is a second person who can have such courage. The middle-aged teacher's tone was calm.

Li Yun stood up at this time and said, "Teacher, you have won the prize." ”

"Okay, back to business, do you have any questions to ask when you raise your hand?" The middle-aged teacher asked.

"Yes, teacher, there is a little genetic problem in the student's heart, and I ask the teacher to teach me to solve the doubt." Li Yun said very humbly at this time.

"But it doesn't hurt to say it."

"The teacher just said that genetic modification is beneficial to human beings, but he did not say that it is harmful to human beings. Does the change in the molecular structure of DNA develop according to human expectations, and if the recombinant DNA is mutated or rejected when it is regrown, does it mean that a genetic mutation will occur? Li Yun temporarily asked the middle-aged teacher's question.

The middle-aged teacher listened to Li Yun's question, a slight smile appeared on the corner of his mouth, and he slowly put down the infrared pen in his hand.

"Today I can see the power of your prickly student! Okay, teacher, I'll talk to you, sometimes a theory is a theory after all, and putting it into a real experiment will expose the unrealistic views in the theory.

The problems you are talking about are real problems, and they are also problems that cannot be solved. Genetic modification is a huge project, a project based on high-tech biological means to achieve an adaptive life after biological modification, and it is more energy-consuming than IT engineering.

In the world of IT, there are 0 and 1, while in the world of genes, there is natural selection, survival of the fittest. Match to adapt, don't match to eliminate. The process of mutation in the middle is inevitable, without this variation, there is no adaptation, and mutation is often bidirectional, and the error of mutation gives rise to new species.

Therefore, many biological scientists will invite many scientists from various fields to complete a biological project, which is a guarantee and a trend. The middle-aged teacher explained.

Listening to the middle-aged teacher's words, Li Yun seemed to think of something, hazy