Wang Dongming entered the teaching area with a mouthful of buns and soy milk, and his pace was slow.

The girl who was traveling with her was so anxious that she gritted her teeth and said, "You can eat buns just by eating buns, you can't walk faster."

Wang Dongming shook his head: "Do you know when I feel the most comfortable time every day? It's when I have breakfast in the morning, I can't stop me from eating buns."

"Look at your landlord's appearance as wealthy." The girl said angrily: "If you want to have breakfast more comfort, you can't get up early and go to the cafeteria to buy it yourself?"

"It's not comfortable to get up early to eat breakfast."

"Okay, I deserve to make trouble, I'll buy you breakfast?" The girl snorted and turned her head.

Wang Dongming swallowed one-third of the bun in one mouthful, swallowed hard, and smiled and said, "You are not called tossing when buying buns, this is called...love..."

Although he was a boy who was so bold that he couldn't do it, he still unconsciously used English when he said this word and lowered his voice.

The girl's face turned red and she said shyly: "What are you talking nonsense!"

"Don't talk nonsense. In fact, I just don't have the money to buy buns. I'm thinking, you are a high-ranking official, you wear a pair of leather shoes for two or three hundred yuan, so I'll let you spend it..." A boy who is not ashamed of or inferior to money is rare. This person is even more righteous and has the temperament of a communist.

The girl asked very seriously: "Have you spent all your money again? What did you buy?"

“I didn’t buy anything…”

"Say." The girl put her fingers on Wang Dongming's waist.

"It's really not...Oh, you're so pinched, I said, I bought two tapes, the ones that were cut, which were cheap, only 10 yuan a plate, and it cost thirty..."

"One plate costs 10 yuan, two plates 30 yuan, Wang Dongming, can you lie to me seriously?"

"The two plates are approximate, approximate...Oh..."

"What tape?"

"The country music sung by foreigners is very exciting." Wang Dongming showed a ruffian look.

The girl's face turned red inexplicably.

The gangster who plays music is not a gangster in this era. He is a rebellious and talented high-level talent, and he also has a faint halo. The gangster who can learn music in the 1980s had to have a pretty good family background. This is like asking you how much a parking space in the community costs a month. It is a tactful background proof that those who play music in college are even more powerful, which is basically equivalent to the second generation of power who are interested, intelligent and persevering.

Of course, it also takes a little wisdom to catch such a boy. The girl whispered her hair in a few small coquettish words, and then stepped on the Dongdan limited edition calf leather shoes worth more than 200 yuan on the ground, asking the boys' favorite topic: "What kind of tape do you like so much? What are the lyrics?"

"What can foreigners sing country music? It's like in our Chinese villages. You snatched my first love and I slept with your sister-in-law. Don't look at my wife. His son looks like me..." Wang Dongming hummed a few lines of American country music.

"Bah, if you talk nonsense, I won't leave with you." The girl took two steps quickly, fixed at the door of the classroom, and did not move forward any further.

Wang Dongming was proud, happily took a big bite of the bun, and smiled, "I knew you wouldn't leave me."

While saying that, he stepped over the classroom door and then settled down.

"We've gone to the wrong classroom?" Wang Dongming was stuffed with buns in his mouth, his voice unpleasant.

"Does the classmate take a genomics course?" The teacher at the door asked kindly, looked at the buns in Wang Dongming's mouth, and then turned his head slightly: It's so ugly!

Wang Dongming nodded foolishly and asked again: "Have genomics changed classrooms?"

"No, if you are a student in this class, you can get in. If you don't, don't come in. Have you brought your student ID?"

"I haven't heard that I have checked the student ID in class." Although Tsinghua students are not so obedient that they don't talk back.

The teacher laughed dryly and said, "There are too many people coming to class today and I can't let it go. If you are not students in this class, come back another day."

"Come again the next day, can the teacher teach today's class again?" Wang Dongming said dissatisfied.

The teacher smiled and said, "If you have a student ID, take it out."

Wang Dongming wiped his mouth and used his oily hands to find the student ID from his pocket.

It is a wide range of uses, and students, especially freshmen, often carry them with them.

The teacher looked carefully, then looked in the notebook in front of him, and nodded, "Seat 4 in the eighth row, don't go wrong."

“Seats still line up?”

"If there are too many people, you have to line up your seats. Don't talk nonsense after entering, there is a camera." The teacher reminded him and signaled him to go in.

Wang Dongming was startled by the camera once, and he leaned in and saw a big camera in front of the classroom, with three legs in the middle.

"There were no cameras in the first few classes." Wang Dongming muttered to the middle of the classroom, found the eighth row and four seats, then looked back at the seventh row where his girlfriend was, greeted him, and sat in.

After sitting down, Wang Dongming was shocked again when he looked at the front and back rows.

"Hello, Teacher Liu." Wang Dongming found that the teacher who taught him biochemistry was right in front of him, and couldn't help but sit up straight in a panic.

"Hello, next time I come earlier, Director Yang will be in class soon." Teacher Liu didn't know who Wang Dongming was, but knew that it was a student in the class he taught, so he criticized it in a very good manner.

Wang Dongming nodded obediently, then looked down at his watch: 7:55. There are still five minutes left before class.

Wang Dongming couldn't help but complain: It was so great that the evening class was so good. Two people finished supper and went to class together. After class, they could still send girls back to the dormitory in the dark... It felt completely different in the morning. Well, which singer went to bed before 12 o'clock in the evening? Getting up at 7 o'clock in the morning is a life-threatening death.

Looking around, two familiar or unfamiliar teachers made Wang Dongming even more frightened.

"What's wrong?" Wang Dongming couldn't guess.

After a while, Yang Rui pushed the door and was slightly shocked when he saw the scene in front of him.

However, Yang Rui didn't know how many times he faced the camera, so he started class calmly and said: "Today we focus on cloning and PCR, and introduce the methods used to study individual genes in the pre-genomic era. Afterwards, I will focus on the research methods dedicated to genomes. After class, you can compare the differences and advantages and disadvantages of the two methods. As after-class homework, we have not assigned homework yet."

"No." The students answered in unison with kindness.

Yang Rui said "Okay", thinking that Xinsheng was really well-behaved. At the same time, he consciously or unconsciously looked at the lens and said: "In the 1970s, molecular biologists had formed a mature tool for studying the technology used by DNA molecules. Although classic genetics methods are the only way to study a single gene, many basic discoveries in molecular biology were also made in this way. For example, in 1961, the operon theory proposed by Jacob and Monod.

,This theory describes how the expression of certain bacterial genes is regulated, which is probably the greatest achievement in the field of genetics in this era... However, the limitation of classical methods is that they cannot directly detect genes, that is, all information about gene structure and activity is inferred... By the late 1960s, these indirect methods were not enough to answer the details of individual gene expression raised by molecular biologists... At this time, DNA recombination technology appeared."

When Yang Rui said this, many experts and professors unconsciously raised their heads.

Classical genetics methods are actually the main method, or even the only method used by many scholars when doing research.

Of course, everyone knows that this is the technology from abroad in the 1960s, but everyone either knows this method or only has the technical conditions in this aspect.

At this time, Yang Rui's naked classic genetic methods were not enough and had been eliminated by DNA recombination technology. Many people were emotionally unable to accept it first.

Some people even complain: What, I use old technology and may not be able to achieve better results than you.

However, the complaint quietly disappeared when his eyes touched Yang Rui.

After several days of understanding, everyone has long been familiar with Yang Rui's research work. As for scientific research itself, no one dares to speak out loud about Yang Rui in the field of genetics at this moment.

What's more, there are cameras taking pictures.

In the classroom, undercurrents surged.

The scene was calm.
Chapter completed!