Chapter 381： essays that will change history

Chen Xiao was in a hurry in Yanjing. When he was at the Xiaguo Academy of Sciences, he had been discussing some methods and contents of gene sequencing in the genetic laboratory with Wu Wei's team.

After getting the sequencing results, he hurriedly returned to Jiangzhou.

Before leaving Jiangzhou, Chen Xiao called Shen Wei and informed him of his itinerary.

Shen Wei learned that Chen Xiao was actually overjoyed in Yanjing, and when she heard that he was about to go back at the airport, her mood was like falling from heaven to hell.

Chen Xiao could only say apologetically, "This time I'm going to Xiaguo Academy of Sciences to do some private affairs. Next time I'm in Yanjing, I'll definitely go climb the Great Wall with you and see the Forbidden City."

After listening to Chen Xiao's words, Shen Wei didn't know the reason, her nose was sore, and tears were rolling in her eyes.

When they just graduated from high school, the two of them made an appointment to watch the maple leaves and climb the Great Wall in Yanjing together. They were both in their second year of sophomore year. Such a small wish has not been realized so far.

Shen Wei only whispered: "I'll wait for you..."

"Weiwei, why are you in a daze, let's go, have dinner." The roommate greeted and pulled Shen Wei out of her thoughts.

After returning to Jiangzhou, Chen Xiao immediately threw himself into the laboratory.

The location of the gene is determined, and this is easy to do.

According to the method instructed by the system, Chen Xiao cut out this part of the gene that uses electrons in Listeria, and assembled it into the corresponding part of Rhodospirillum and cyanobacteria.

At present, the equipment and conditions of the Jiangzhou University laboratory are definitely incomparable to those before Chen Xiao was born again, but fortunately, the equipment for gene shearing is still available.

Although the equipment is somewhat backward, it can be compensated with Chen Xiao's technology.

Chen Xiao's time was very tight. Even if Jiangzhou awarded Chen Xiao the "May 4th" Youth Medal, Chen Xiao didn't have time to go, but let Wang Xiang lead it.

May 7th.

Jiangzhou University has a 7-day holiday according to regulations, and the entire campus is even more empty, and today is the last day of the May Day holiday.

in the BSL-3 laboratory.

Chen Xiao frantically tapped the experimental paper on the computer.

The part of the paper on animal experiments has entered the last link.

Chen Xiao has not yet conducted experiments with mammals, which is the biggest drawback of experiments.

It's not that Chen Xiao is unwilling to use mammals to conduct experiments, but when he did this part, he happened to be facing the May Day holiday.

The teachers in the experimental materials management department of the biological laboratory have all gone home for the holiday, and the laboratory has no mice or rabbits in stock.

Chen Xiao can of course buy some animals in the market for experiments.

However, because the physical indicators of the animals purchased on the market are uncertain, there is no way to form a standard control group, so Chen Xiao is still willing to wait.

There is a black jar next to Chen Xiao's computer. The positive and negative poles of the jar are connected to the power supply. After the civilian power supply is transformed, a very weak current will form in the jar. , otherwise it cannot be perceived.

Such a weak current does no harm to the creatures in the jar.

Inside the jar is 100% distilled water, and there are hundreds of bugs swimming around in the water.

If you don't look closely, you might think that these are just ordinary insects in the water.

But if you look closely, you will find that these bugs in the water are actually fruit flies that can be found at any time in life!

In this way, there is no sunlight and no oxygen.

This batch of fruit flies has lived for a full 7 days.

Any biologist would be shocked to see this scene - the aerobic organism Drosophila lived in a completely anaerobic environment for a full seven days.

This small group of ecological circles in the black jar completely broke the basic common sense of biology and overturned a certain fact that biologists have always believed in.

In the history of biological research in the past few hundred years, perhaps some biologists have discussed the conditions under which aerobic organisms can live in an oxygen-free environment?

Many of them have tried many times and failed without exception.

But today, Chen Xiao achieved this goal by using the symbiosis between different organisms.

Food and thought**, the fruit flies not only survived, but also mate and lay eggs on the fruit skin under the jar, but these fruit flies did not find that the next generation they reproduced and produced was completely different from themselves.

Even the eggs produced are lucky enough to hatch in the water.

The progeny fruit flies that are born will immediately suffocate to death.

This is Chen Xiao's last experiment using fruit flies. He symbiotically developed a mixed colony of modified Rhodospirillum and cyanobacteria. The symbiotic characteristics cannot be naturally passed on to the next generation.

After typing the last word of the paper, Chen Xiao saved the document and closed the computer.

It has been more than two months since the Spring Festival.

Chen Xiao was in the laboratory almost all day and night, with an average sleep time of less than 5 hours a day. Now, all the efforts are worth it.

Chen Xiao couldn't help crying and laughing and said, "It's obvious that there is a system, so why torture me to do experiments? Give me the product directly, isn't it delicious?"

Tucao returns to Tucao, work still needs to be done.

But tonight Chen Xiao can finally go home and have a good sleep.

He has already contacted the teacher who manages the experimental supplies, and he will be able to fiddle with a few rabbits and mice from the laboratory early tomorrow morning.

As long as the last closed loop of animal experiments is completed, the final part of the paper can be written.

Whether the rest is human trials or clinical applications, there is no need to hurry, it just needs to be handed over to time.

Moreover, Changtian Technology currently does not have a professional bioengineering team. Chen Xiao still needs to plan the future development of Changtian Technology and set up some more scientific research units.

Early the next morning, Chen Xiao came to Jiangzhou University.

He applied for 3 rabbits and 3 mice to the teacher who manages consumables in the biological laboratory to prepare for the laboratory later.

Didn't expect Fatty Yang Kai to be here too. Yang Kai looked at Chen Xiao and asked quietly, "You also use rabbits? I heard that you have been in the laboratory all this time. What did you tinker with?"

Chen Xiao said cheerfully, "I didn't mess around with anything, just some fruit flies."

Yang Kai didn't believe it, but he didn't ask any more questions.

Back in the laboratory, Chen Xiao's breathing was a little short.

After all, mammals and insects are completely different.

Mammals' oxygen demand is tens of thousands or even hundreds of thousands times that of insects, and their bodies also have complex and abundant capillaries.

How many colonies are needed, and how much oxygen must be metabolized per standard metered colony in unit time, in order to meet the basic needs of mammals.

There is also whether the generated oxygen is soluble in blood, and what method should be used to combine it with hemoglobin.

The last point is whether the products of colony metabolism are harmful to the vital signs of mammals.

These answers have already been told to Chen Xiao by the system, but that sentence is still the same.

Chen Xiao needs to experiment! experiment! experiment!

Just when Chen Xiao was about to anesthetize the first mouse, the phone rang.

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