Scholars in the courtyard.

Chapter 634 Lecture

The sudden sound cheered Yang Xiaotao up, and his face regained confidence.

Until the applause stopped for a while, the host's voice sounded again.

"Here, I would like to announce a piece of good news. Share this joy with everyone."

The middle-aged man said with a smile on his face, and Yang Xiaotao announced to everyone with a smile on his face but a blank expression, "Comrade Yang Xiaotao, in addition to making achievements in hybrid corn, he has also made important breakthroughs in biological genetic research. .”

"I presided over the writing of the thesis, gene mutation, and published it in the "Nature" newspaper, which is of great significance to the biology of our country. His research direction has opened a new door for my biological development..."

As the host's voice fell, there was a sound of surprise in the auditorium.

Everyone has heard of the influence of natural newspapers and periodicals in science all over the world. Being able to publish papers on them has no doubts about their authenticity, scientificity, and importance.

Even the experts in the front row were shocked. They have never heard of anyone in China who has participated in it for so many years.

Yang Xiaotao looked normal, but he was nervous inside.

Looking at the expressions of everyone in the audience, I feel a little helpless.

It's early to be famous, but you also need to have excellent skills.

He also looked at Dean Deng who was in the middle of the row in front of him. He was very skeptical that these words were arranged by him.

After the host's introduction, there was another warm applause below.

It wasn't until the host handed over the microphone and stepped off the stage that the applause below subsided slowly.

Yang Xiaotao took the microphone with a look of helplessness on his face, which was completely inconsistent with his low-key idea.

Watching Yang Xiaotao pick up the microphone, the venue was silent, waiting for Yang Xiaotao to speak.

"Hi everyone, I'm Yang Xiaotao!"

Facing hundreds of people in the audience, Yang Xiaotao's voice trembled a little.

But he quickly adjusted his mentality. Although these people are much more numerous than the students in Yangjiazhuang, and their ages and identities are also different, but at this moment, standing here, he is the teacher, and the students below are the students.

What is there to be nervous about teaching students?
Yang Xiaotao heaved a sigh of relief, regained his form, and everyone's eyes were on him.

Turn around, pick up the chalk and write a few big characters on the blackboard.

"The topic I bring today is hybrid corn and genetic mutation!"

After finishing speaking, everyone below has already started to record in the notebook.

Quite a few people showed excited expressions. They had obviously heard about the hybrid corn. Looking at the word "gene" behind it, even the few people in the front row listened intently.

However, Yang Xiaotao was not in a hurry to explain.

"Before the lecture, I need three pairs of men and women who know each other to come up and help. Is there anyone who volunteers?"

The scene was silent for a moment, and there was no reaction.

Then I saw An Ran holding Yu Hua and raising his hand.

"Okay, you two!"

The two kept looking at Yang Xiaotao, and Yang Xiaotao also paid attention to the two of them, and immediately called the roll.

Soon, two more couples ran onto the stage.

Faced with this ingenious way, the people below looked at it leisurely, and even Dean Deng showed interest.

This way of interaction is deeper than the characters on the blackboard.

"Okay, I guess you must come from the same place, or you are familiar with each other."

Six people nodded.

"Okay, then let's get to the point!"

Yang Xiaotao asked a few people to stand aside, and then stood in the center, "As you can see, there are three pairs of people coming up!"

"I will give each pair of them a name. Everyone remember, from now on, they are not human beings, but corn!"

Everyone laughed, and the six people on the stage also laughed.

Especially the two of An Ran, who were able to listen closely and participated in it, and they will definitely be praised when they go back and tell the teacher.

"The code names for the two of you are long and short, the male is long and the female is short!"

"The code names for the two of you are big and small, the male is small and the female is big!"

"The code names of the two of you will not fall, the male will fall, and the female will not fall!"

"Do you remember it all?"

The six nodded in unison.

"Okay, then, let me tell you the rules first."

"Among the six people, when boys and girls are together, everyone can only call the boy's code name. Remember that?"

The people below nodded.

"Then, I'm starting to arrange!"

Yang Xiaotao began to direct several people to stand together.

"Now, six people stand together, please call out their names to me."

"Long and small!"

"Very good, everyone responded very quickly!"

"Then, girls come out, and everyone calls out their names."

"Short but not too big!"

"correct!"

"So, here comes the problem. I want to find a name that is long, big, and not inverted. How should I combine it?"

"Let's let them do it themselves!"

Soon, the six stood up on the spot.

A man and two women stand together.

"Right!"

Everyone below nodded.

Yang Xiaotao walked up to him, "Then everyone knows, how many possibilities are there to find such a perfect combination?"

"There are quite a few math students present, give me an accurate answer!"

"Eight types!"

Someone shouted out, Yang Xiaotao raised his hand and extended his thumb.

"that's right!"

"I mean, the chance of them being together like this is one in eight!"

"Do you think it's very simple?" Yang Xiaotao stood aside and said to the crowd with a smile, "I also think it's simple, because that's how hybrid corn comes out."

"Thank you guys, please take a rest."

An Ran followed Yang Xiaotao's hand and immediately walked to the side of the podium, and sat down cross-legged, just in front.

The others sat down quickly when they saw it.

Yang Xiaotao wrote on the blackboard that long sticks, big grains, and resistance to lodging.

Then write the matching English letters below.

Three minutes later, a complete genetic combination appeared in front of everyone.

"That's how hybrid corn came about."

"First, I identified the phenotype of corn, like long and short."

"Then determine the dominant and recessive genes that control the two phenotypes, just like just now when boys and girls are together, we call them code names, boys are dominant and girls are recessive!"

"The last is the combination. The combination of male and female students will produce different traits, and this combination is genetic recombination."

……

In the next half an hour, Yang Xiaotao finished explaining the principle process of hybrid corn and the changes in existence, the scene was completely silent, and everyone was digesting everything Yang Xiaotao said.

Some people who have studied hybridization know that the seemingly clear flow chart above is actually the hard work of countless days and nights.

It is easiest to find things from one to one hundred, and it is rare to go from zero to one.

is found.

And Yang Xiaotao is the discoverer. He has opened a door and found the way. The rest of the people only need to follow this way to expand and go all the way.

And after that, no matter where it develops, people will remember that the person who opened the door was Yang Xiaotao.

As for the others, they just remember what hybrid corn is and how to get it through explaining.

After Yang Xiaotao finished talking about hybrid corn, he let everyone digest it for a while, and then changed the topic to talk about genetic mutations.

"Everyone has been listening for so long, have you noticed that there is a term that often appears?"

Yang Xiaotao said, and then he drew the word "gene" on the blackboard.

"So, can anyone explain what a gene is, or what you think a gene is?"

The voice fell, the audience was silent, and no one answered.

Some, cold field.

This scene caught Yang Xiaotao off guard. It stands to reason that genes should not be like this. They are ignorant.

Just when Yang Xiaotao was about to explain himself, an old man in the front row raised his hand.

"Mr. Yang, hello!"

"I am a biology teacher from the Academy of Agricultural Sciences, and my surname is Zhou!"

Yang Xiaotao was stunned by the address of the old man, but he quickly realized it.

"Hello, Teacher Zhou."

Yang Xiaotao quickly responded.

Someone whispered in the venue immediately. Although Yang Xiaotao didn't know this person, judging from the reactions of everyone, this person was an expert.

"Ms. Yang, I have read your paper on hybrid corn and your paper on gene mutations. The writing is very in-depth."

"Thank you for the compliment."

Mr. Zhou waved his hand, "There is no need to be modest, here we are, the master is the teacher. Don't think I am older, but I have eaten a few more years of salt and read a few more books than you."

"If you can hear knowledge here, if you hear the Tao in the morning, you will die in the evening."

Teacher Zhou smiled and said to the people around him, and they laughed together.

Later, Teacher Zhou began to talk about his own opinions.

"In my opinion, genes are genetic codes, which can pass certain characteristics of parents to the next generation."

"This code, in the recombination of both parties, forms a new individual."

"As our ancestors said, dragons beget dragons, phoenixes beget phoenixes, mice are born to make holes."

After Teacher Zhou finished speaking, Yang Xiaotao nodded.

"Thank you, Mr. Zhou, for your explanation. It's very incisive."

"As Teacher Zhou said, each race has special genes and a unique way of inheritance..."

Yang Xiaotao pointed to the English letters on the blackboard, "Just like these letters, each of them represents the genetic code, expressed in its own way..."

"We take the insulin that Mr. Wang said is actually protein."

"The amino acids that make up the protein will be arranged in a specific way, and why they are arranged in this way, or the template for manipulating the arrangement of these amino acids, I think it is the gene."

Yang Xiaotao expressed his own thoughts, including some understandings of later generations, as well as his own views combined with the times.

It’s not that I don’t know the process of gene replication, transcription, and translation, it’s just that if I say it now, there is no factual basis as a basis, and there are not enough hard conditions.

However, Yang Xiaotao was not too conservative. After thinking for a while, he still picked up a chalk and drew a chain on the blackboard.

"It was Mr. Wang's lesson yesterday that inspired me. I have a guess here."

"If insulin is a product under the control of a certain gene, can we reverse it and deduce the gene through the amino acids that make up the protein?"

"I have deduced it in private, but I am immature, so I can give it to everyone for reference."

Having said that, several people in the front row couldn't sit still anymore. Some experts wearing reading glasses took out their handkerchiefs and began to wipe the glasses lenses, wanting to take a closer look.

Especially Wang Guangmei, who was lecturing yesterday, stood up and walked to the front of the first row to sit down, looking at the blackboard carefully.

They really hadn't thought about this subject.

Because insulin has not succeeded yet!
"That's what I was thinking about last night."

Yang Xiaotao looked at the two lines on the blackboard, shamelessly putting the discoveries of later generations on himself.

However, having said that, it is not certain whether there are those people in this world. We can't wait for those people who may not exist to promote the development of science.

It is necessary for oneself to be an insurance.

Yes, this is Yang Xiaotao's self-comfort, and it works.

(End of this chapter)