Obviously, the status is so precious, but it comes so easily, the naked eye can see everyone's restlessness and excitement!

And then there's pride!

Also, there are so many students in the country, but not everyone can stand here!

The master on the stage has already stood still, except for a teaching assistant teacher behind him, it is a teenager, no one else knows him, Song Zhizhi still doesn't know him, he was stunned!

It turned out to be Xiao Junze!

Xiao Junze smiled at her, Song Zhizhi also smiled, and silently gave a thumbs up beside him, 6 Ah, this is not abroad, why did you suddenly return to China, not to mention, you still appear here, not only surprise, but also fright.

The most important thing is that he is actually standing next to Professor Shi, which is what ordinary people can stand!

"That's Professor Shi's student, he looks about the same age as us, so powerful!"

"That's not it, don't say it's amazing, that's a pervert, I heard that he has very good grades abroad, and he has taken other people's courses for three years a year, and he is only about a year away from being able to start experimenting, and now I heard that he is following some graduate students, doctoral students and seniors to do experiments, so he will definitely follow the teacher professor in the future!"

"Yes, yes, this student is not the same as a wild student like us, he is a disciple, hahaha, that's what it says in the novel!"

……

After hearing this, Song Zhizhi felt more and more that Xiao Junze's growth speed was too perverted, but he also sincerely admired and was happy for him!

If Xiao Junze chooses biology, he has good friends in his peers, and he is not lonely in his scientific research path, which is also very good!

But suddenly, Song Zhizhi remembered that Professor Shi was not only famous in biochemistry, but also very accomplished in physics, but he himself was biased towards biology.

I just don't know which one Xiao Junze followed to learn!

"Hello everyone, I am Shi Yiguo, this is my assistant teacher Wu Changqin Wu, that is my student, Xiao Junze, he will also join our training camp to participate in the study and training selection, Xiao Junze, you go down first and stand with everyone."

"Good!" Xiao Junze turned around and stepped aside.

The others are still applauding and introducing themselves to that sentence!

Professor Shi waved his hand, and everyone immediately fell silent.

"Hello, welcome to my training camp, the pillars of the country will be produced in the middle, I don't like to talk nonsense, I said it directly, the noon canteen test results and scoring rules have come out, just post them on the bulletin board outside the building, you can go and see it when you disband later."

Grades!!!

These two words were stepped on like a red line, which made everyone's hearts lift, and then many people were full of confidence again, the question was so simple, stable!

Shi Yiguo smiled and did not continue this topic, "Then let's talk about today's focus, the experiment, the first round of elimination, with an experiment as the topic of the competition, as for what experiment, keep it secret for the time being, what we have to do now is to divide the team, there are a total of three hundred and two people present, there will be two more people in a group of four, for the sake of fairness, my student Xiao Junze will randomly pick one person to form a two-person group!" ”

"The elimination rate is half of the people, and the results are recorded according to the contribution of a single person, do you have any opinions?" The teaching assistant teacher followed suit.

The crowd replied in unison, "No!" ”

Xiao Junze's strength is strong, and the chosen person may not be stronger than them, the two of them, the four of them, are indeed about the same.

And what if you choose yourself!

Everyone was full of hope, Xiao Junze stood below and looked at the audience, and pointed to Song Zhizhi's position without any surprise, "The seventeenth classmate in this line, please report the number!" ”

"One!"

"Two!"

……

"Seventeen!" The more Song Zhizhi spoke, the quieter his voice became, and everyone suddenly cast envious glances, and the youngest short girl was actually chosen!!

Ahh

But don't be afraid, maybe Xiao Junze won't be able to do this experiment!

Song Zhizhi: ......

Is that really good?

Although she feels pretty good hahaha!

Soon, the others also began to form teams freely, in groups of four and four, but in half an hour, they all registered and stood below in groups again.

Then the teaching assistant began to distribute the experiment questions, objectives, requirements, etc., a total of two pages!

Xiao Junze took it and immediately handed it to Song Zhizhi, and Song Zhizhi took a look: the extraction of plant DNA!

It should be one of the basic biology experiments for undergraduates, not difficult, not simple, but if you can't pass the foundation of biology, there is really no need to continue.

Then there is the blank page that needs to be recorded in the process of the experiment, and the experimental steps and methods can choose to ask the teacher for or not, or will not deduct points, but do not add points!

This time, nearly half of the students chose to do so!

Song Zhizhi had already seen this experiment, so he chose not to ask for it, Xiao Junze said to listen to her anyway, so he didn't object.

"Okay, from now until twelve o'clock this evening is your experimental time, and it is also the time that the laboratory can use, during this period, you can come to hand in the report, the laboratory is on the highest floor of this building, you can prepare by yourself, look forward to your good results!"

After the teaching assistant teacher finished instructing, with a wave of his hand, the door to the outside opened, and while everyone turned around, the assistant teacher Wu and Professor Shi Yiguo and others left quickly from the side door, leaving only a group of students.

The other students were busy looking at the previous grades, and Song Zhizhi and Xiao Junze walked at the back while discussing the steps.

"The experimental items are the easiest, let's go outside and take a few young leaves, they go to see the results, let's go and get them first, and squeeze it later!"

Xiao Junze pulled Song Zhizhi and walked quickly to the flower bed, and heard the dissatisfaction, doubt, doubt, shock and lament of other students in front of the bulletin board from a distance.

The two of them picked a total of more than ten young leaves and packed them with small plastic before going to the bulletin board, Song Zhizhi directly looked for herself, ranking in the top ten, which was better than she expected!

Looking at the rules again, she understood, smiled, and hurriedly went to the laboratory with Xiao Junze.

Seventy or eighty groups, carried out at the same time, some were busy ...

The two of them came quickly, and sure enough, they took up the position first, and gathered all the experimental equipment first, including pipettes, desktop high-speed centrifuges, water-dissolved pots, ceramic research bodies and centrifuge tubes.

There is also an unequal amount of liquid nitrogen, CTAB extraction buffer: 2% CTAB (cetyl t

imethyl ammo

ium b

omide, cetyltrimethylammonium bromide) and other reagents.

Song Zhizhi recalled the experimental steps he had learned, "In the first step, 0.5 g of plant material was washed with double distilled water and blotted dry with filter paper. In the second step, the plant material is cut into pieces of about 1 cm...... Add the extraction buffer to a 5 ml centrifuge tube...... In the twelfth step, add 400 ul TE buffe

Solubilize DNA. ”