With the use of artificial uterine technology, with enough resources and energy, plus these oogoblasts and spermatogonia collected, it is really feasible to increase the population without limit.

As long as the oocytes and spermatogonia continue to proliferate, a steady stream of egg cells and sperm can be obtained.

Most importantly, the genetic material of the egg cells and sperm obtained in this way is the same as that obtained by natural reproduction.

Their genetic material is relatively different.

"Good! It's better this way. Zuo Dajun said with a smile, "It is better to take the way of oocytes and spermatogonia than to take the way of egg cells and sperm, look at these in front of us, that's all, you can get a large number of cow egg cells and sperm in a short time." ”

Ooblasts and spermatogonia are collected from cows, and these ooblasts and spermatogonia are multiplied by culture, followed by differentiation into egg cells and spermatozoa.

Fan Xiaoming nodded, "Yes!" We are now in an area that will provide enough cow egg cells and spermatozoa, and as for the ooblasts and spermatogonia dividing into egg cells and spermatozoa, you can either simulate or directly observe. ”

Zuo Dajun smiled, pointed to the two cultivation devices not far in front of him and said, "I want to observe these two, I'm not wrong!" One of these two is an egg cell culture device and the other is a sperm culture device. ”

"That's right, that's right." Fan Xiaoming smiled.

At this time, a robot flew over with two small devices on its back.

After the robot came, it installed the small device it brought on the two cultivation devices that Zuo Dajun pointed to.

With the equipment ready, Fan Xiaoming waved his big hand in front of several people, and two pictures appeared in front of several people.

Oogoblasts and spermatogonia in culture.

Seeing this, Zuo Dajun said: "It's not intuitive to look at it like this, can we go into the virtual universe to see it, it can be more intuitive if you look at it that way." ”

It's not much different from looking at it on the screen in the past.,Although I want to be in the three-dimensional sense is better.,But compared to the virtual universe.,This way is still a lot worse.。

Fan Xiaoming shook his head, smiled and said: "We are directly observing, there is no need to enter the virtual universe, but we can also achieve the results you want, don't forget our virtual reality." ”

As he spoke, the environment around Su Zhe and the five began to change, and the cultivation equipment around them began to fade, and what the five of them saw became those ovoblasts that were being cultivated.

This picture is as if Su Zhe and the five of them have become smaller and appear in the culture medium of oocytes.

The five of them looked at the large number of oocytes in front of them, many of which were in a state of division.

Some are just splitting, some are in the middle stage, and some are about to complete the split.

A closer look can also reveal material moving around these ooblasts.

Seeing this, Zuo Dajun was a little excited, "This is the division of ooblasts, or the proliferation process of ooblasts, compared to before, it is much more convenient to learn these now, and directly watch the real process, and the information conveyed by words is not as direct as it is now." ”

With Fan Xiaoming's control, the oocytes seen by several people are also constantly changing.

"In the past, it can be compared with the present, in the past, when it came to oogonium, in addition to imagination or imagination, now directly in front of you, even every detail of the oogonia can be seen clearly, who called us now have a strong ability to detect." Fan Xiaoming said.

Bao Qizheng nodded and said: "You don't know, the current teaching is the same as exploration, just like the oopocytes we see now, using the brain computer to enter the virtual universe can explore the origin of the oopocytes little by little, their structure, function, etc., in any case, they are stronger than the imagination in the past." ”

"That's it!" Zuo Dajun said, "Not to mention the brain machine, the game cabin that is about to be eliminated is also very strong, and the current brain machine, it is even more incredible, not to mention the speed of learning, what messy ideas can be quickly verified, as long as you are not a fool, what will you learn, this is now, there was no such condition in the past." ”

"There's no comparison, okay!" Fan Xiaoming explained with a smile, "Now we see some oogoblasts that are not involved in proliferation, and these oogoblasts will be gathered together and enter the egg cell culture area, that is, the oogoblasts will differentiate into egg cells. ”

Again, what a few people saw changed.

There are a lot of dividing oogonium, but instead of two ooblasts, these oogospermial cells have become two oocytes.

To talk about the difference, the previous division is the proliferation of oocytes, in fact, it is the replication of oocytes, and the two oogons after division are basically exactly the same as the previous oogoblasts, of course, it is possible to make mistakes in the process of proliferation and division, but the probability is extremely small.

In this kind of proliferation and division, the genetic material and cell tissue structure are basically the same.

What a few people see now is different.

To be precise, an ooblast differentiates into two egg cells, each of which has half of the genetic material of the ooblast.

Zuo Dajun nodded and said, "These differentiated egg cells will enter the next step, that is, the egg cells will receive sperm." ”

"Yes!" Fan Xiaoming smiled and said, "Let's take a look at the proliferation and differentiation of spermatogonial cells, which is actually the same as the proliferation and differentiation of oocytes." ”

Speaking of which, the proliferation process of spermatogonia and ooblasts is really similar, and the difference is differentiation.

Zuo Dajun saw the sperm that finally differentiated from spermatogonial cells, and said: "The whole process is about the same, but the size of the egg cell and sperm is a little large...... By the way, since we can proliferate oocytes and spermatogonia, why don't we just proliferate oocytes and spermatogonia, isn't it more straightforward, there are still a lot of unnecessary steps left. ”

Hearing Zuo Dajun say this, Su Zhe and the others were a little helpless, everyone knew Zuo Dajun's educational background, so they didn't have too many expressions.

Bao Qizheng smiled and explained: "Direct replication of egg cells and sperm is really feasible with the current technology, but this is a little against the sky, the most critical problem is the diversity of egg cells and sperm, direct replication of egg cells and sperm can not guarantee the diversity of genetic material, you don't want these cattle to be the same, if you copy egg cells and sperm, but also to maintain the diversity of their genetic material, it is technically achievable, but it is not as convenient as the current way, this is like a way that has been originally there, If you don't want to go, you have to open up a new path, and there is no need to be difficult for yourself. ”

While Bauchi was explaining, several people exited the virtual reality, and several people were led by the narrator to the next area, the blastocyst area.

This area is the process by which the egg cell and sperm combine to form a fertilized egg, which divides to form a blastocyst.

Hearing what Bao Qi was saying, Zuo Dajun nodded again and again, "I understand, the process we are taking now is the same as the process that has already occurred, ooblasts and spermatogonia will multiply and divide in the human body, while egg cells and sperm will not be like this in the natural environment, even if we use technical means to achieve it, we still have to solve the problem of the diversity of egg cells and sperm genetic material, even if we still use technical means to achieve it, it will be much more troublesome, the straight road does not take detours, and people with normal brains will not do this...... Isn't it a general distinction of how oogoblasts and spermatogonia ensure the diversity of genetic material when they differentiate into egg cells and spermatogonia? ”

Fan Xiaoming smiled awkwardly and said, "This is the knowledge point of high school biology, or let the narrator explain it to you." ”

As he spoke, Fan Xiaoming waved his hand, and the narrator gave a one-on-one explanation to Zuo Dajun.

The picture that Zuo Dajun could see was not visible to Su Zhe and the others.

When a few people came to the blastocyst area, the narrator's counseling of Zuo Dajun was also completed.

Zuo Dajun said with a smile: "It's still the current way of teaching, just look at the process, even a fool can understand, unlike in the past, the teacher was on the podium, we imagined under the podium, to be honest, as long as there is a little deviation from the teacher's understanding, it is really difficult to imagine the scene described by the teacher." ”

Fan Xiaoming nodded and said: "Using words to describe the picture is somewhat insufficient, no matter how good the description is, it is not as good as seeing it directly." ”

"That's, that's." Zuo Dajun smiled, "What we are in now is the blastocyst area, is it the process of IVF in vitro conception in the past, that is, the process of egg cells and sperm combining to form a fertilized egg, the process of fertilized egg splitting to form a blastocyst, and finally the blastocyst is transplanted into the endometrium." ”

Fan Xiaoming looked at Zuo Dajun a little weirdly, and said with a smile: "Shout! The army still knows this, and it shouldn't be. ”

Su Zhe and the others also looked at Zuo Dajun.

Zuo Dajun smiled unconsciously and said: "That, what I saw in a magazine when I was idle in the past is an advertisement for IVF made by the hospital, which describes the process. ”

"Okay!" Fan Xiaoming said with a smile.

There are many, many test-tube-like devices in the blastocyst area, and the number is extremely large.

Zuo Dajun stared at a device and said: "Not to mention, you can see some things with the naked eye, this larger one is the blastocyst, or the cell mass, the identical twin is produced by this process, that is, the cell mass is divided into two, and the genetic material of the two is naturally the same." ”

"Yes!" Fan Xiaoming nodded, "We also observe in the same way. ”

After Fan Xiaoming finished speaking, a robot flew over with a small device, which was quickly installed on the test-tube-like device.

With a wave of his hand, the environment in front of several people changed.

A large number of egg cells and sperm appeared in front of several people, and there were many sperm swimming around each egg cell.

Seeing this scene, Zuo Dajun said: "Is it that after a sperm enters the egg cell, the egg cell will close the channel to enter, if you want me to see, this cell is an extremely sophisticated machine." ”

"Yes! Normally, this is the case. Fan Xiaoming said, "Let's continue to look, what we see now is the fertilized fertilized egg, in this process, the genetic material of the egg cell and the sperm will be combined together, and then the division of the fertilized egg." ”

The fertilized eggs seen by several people were already in the process of splitting.

As the picture changes, two cell clusters, four cell clusters, and eight ...... appear

Zuo Dajun said with a smile: "The cells at this time are early embryonic cells, with totipotency, and the cells in this period can develop into complete individuals independently and cultured. ”

Fan Xiaoming nodded and said: "Yes, the cells in this period are totipotent, but the individuals cultivated in this way are the same, what we need is diversification, twins and triplets, even if it is tenwipelets, it is easy to say, if we do this, a million twins can be made, you think about what kind of situation it is, this situation is not a good thing for the whole group." ”

"This, too." Zuo Dajun nodded and said.

"It's rarely used in animals, but it's very common in plants, and it's also very scary, because if there's a virus, it's the whole area, and diversity is necessary for the safety of the group," Bao explained. ”

"Understood." Zuo Dajun smiled, "Huh! These extracted cell masses are mature blastocysts, and the next step is to implant them in the artificial uterus. ”

In the picture, the large clumps of cells are pulled away one by one by a giant needle.

Fan Xiaoming nodded, "Yes!" The next step is to implant these blastocysts into the artificial uterus, where they will grow and develop into healthy calves. ”

At this time, the picture in front of several people changed next time, or the picture returned to normal, and the robot standing next to it removed the device and left.

Zuo Dajun leaned to the side and looked at it and said: "This needle is not big, but these cell clusters were taken away at once, not to see it with your own eyes, then you can think that every cell mass here will develop into a cow, and in this way to breed cattle, it is not as much as you want to reproduce, which also shows that with artificial uterus technology, we humans can reproduce as much as we want." ”

Fan Xiaoming smiled and nodded, and said: "So far, most of these technologies have matured a year ago, otherwise we can't do IVF, the key is the next step, artificial uterus, to be honest, this technology is quite complicated." ”

Artificial uterus technology has been studied for a long time.

If you think about it, you can see how effective this technology is when it is used in animal husbandry, even if it is not used on people, and it is also important for the protection of mammals.

There are many people who have studied it, but progress has been slow.

It was only half a year ago that the research results of the world were gathered, coupled with the in-depth research of thousands of research groups in the past six months, and the improvement of technical means, that the artificial uterus technology was developed.

Now, the number of human beings needs to increase significantly, and the artificial womb technology is even more valuable.

Some people died, but not completely......