Chapter 972

Because Wang Yanke's population breeding plan fundamentally abandoned the concept of people-oriented.

This is also a plan that conforms to the requirements of an era.

Because the population of Jiaxing is basically less than 300000, these people can be said to be a turnip and a pit. The development of Jiaxing civilization needs everyone's labor force as a guarantee, so it is impossible to allocate women for pregnancy and childbirth alone.

If women devote their time and energy to childbirth, it is equivalent to doubling the social productivity, which is a loss that star a human beings can't afford.

Therefore, the first step of Wang Yanke's policy is to sterilize Jiaxing women, so as to ensure that all women can continue to provide labor force for the society together with men without being affected by pregnancy and childbirth.

However, this does not mean that you do not have offspring, but help you get more offspring.

The record of human breeding in the past is the 58 year old Italian lady Teresa in the pre earth era. She gave birth to 13 singletons, 15 twins, 8 triplets and one quadruplet, and 73 children are alive, which can be called a human miracle.

But there are very few women who can have such a lucky chance.

Therefore, Wang Yanke is ready to fundamentally put aside the concept of "human life" and use the high-tech means currently mastered by Jiaxing to help women give birth in vitro.

That is, the local surrogacy system.

At the same time that all women undergo sterilization, the host country has removed most of the follicles carried in women's ovaries from their bodies.

As we all know, the egg reserve of human women is determined when the fetus is born and will not increase after birth.

In other words, like brain cells, it is an acquired non renewable resource, as much as it brings to the fetus.

For a healthy human female fetus, there are about 600000 oocytes at 8 weeks of gestational age, reaching a peak of 6-7 million at 5-6 months. Since then, there are only 2 million oocytes left at birth and 300000-400000 at menarche.

Women excrete 400 ~ 500 mature eggs in their life, and the other 99.9% degenerate and die. During menopause, oocytes are basically exhausted, and ovaries also enter the stage of atrophy.

At the beginning of the menstrual cycle, that is, the first day of menstruation, more than 20 primordial follicles grow at the same time. One of them develops at a higher speed and produces inhibin during the development process to inhibit the development of other follicles. Finally, only one dominant follicle is extracted, and the other follicles gradually shrink and disappear, Therefore, only one follicle can mature in each menstrual cycle.

This is also the main bottleneck of the low human fertility rate. Through high-tech means, the country of planet a unconditionally preserves follicles for women in all countries, of which more than 99% are invested by the country in the implementation of the population breeding plan.

Moreover, the whole process of saving and using is transparent.

Each follicle has a special programming and number. All women can query when their children are born and even have the right to name their children.

As a result, as many as 2 million follicles are removed from a mature woman.

If they are all combined with a mature man, that is, a couple may cultivate up to two million children in their life

Of course, this is only experimental data, and Wang Yanke can't allow this to happen. The biggest reason is to avoid close relatives between offspring.

But it's usually easy for a couple to leave hundreds of offspring.

That is, a woman in her twenties and thirties can fully enjoy the sense of achievement of "full of children and grandchildren" that human beings in the past could not get until they were 70 or 80 years old.

However, another problem that follows is the growth environment of surrogate embryos.

With a mature embryonic cell, there must be a uterus that can grow and develop before it can grow into an individual.

There are plenty of follicles and sperm reserves. The problem is that the uterus is also a turnip and a pit for women. Where do fertilized eggs grow up?

Some scientists have proposed that a large-area breeding cabin can be established under laboratory conditions to raise fertilized eggs in batches.

Wang Yanke's idea is even more bizarre. She buried herself in the laboratory for three years, successfully fused human genes and plant genes for the first time, and created a new species - growth tree.

The roots are thick and thick, and they are luxuriant as the tall Wutong trees. But the interior is biological. Under the plant epidermis of the growing tree, it is a real muscle tissue. Muscle tissue is attached to the woody plant, and it absorbs organic nutrients from the roots of the muscle tissue to provide the growth of the growth tree itself.

When the growth tree reaches the mature stage, each branch is hung with plant-shaped childcare bags, and each childcare bag is equivalent to a uterus with perfect amniotic fluid, placenta, umbilical cord and other organs.

Growth trees can only survive under laboratory conditions, because they can only grow by watering with artificial "blood" containing a high proportion of nutrients.

On the other hand, when Wang Yanke made it, he only gave it some animal characteristics, body characteristics, but modified the genetic parameters, resulting in the absence of nerve cells in these "living trees".

It can't grow a brain, it doesn't have a sensing system, it won't feel pain and any other feelings beyond the response of plants to external nerve stimulation. In essence, it's just a tree, not an animal growing in the soil.

This avoids the moral problems brought by human beings from the emotional level. Even so, the people of Jiaxing still call this tree "mother tree".

All fertilized egg cells are artificially placed in the pouch of the mother tree, and the animal instinct mechanism begins to work. Those preferred cells will automatically grow into a healthy fetus.

The growth cycle is consistent with human pregnancy, and it is also pregnancy in October.

However, there is no more pain in the reproductive stage. The way the human world obtains children has become a "harvest" every ten months. On that day, the people of Jiaxing will dress up in full to harvest their children in the biological experiment park.

Every couple may get hundreds of lovely babies at a time. They smile with tears, pedal the ladder happily, and "pick" their children from the parenting bag by hand. The mother holds the children in her arms, while the busy father breaks the umbilical cord one after another with golden scissors.

With the rapid development of 20 years, the population growth of star a can almost be described as "explosion".

The implementation of Wang Yanke's population breeding policy laid a good foundation for the prosperity of Jiaxing. Forty years later, the population of Jiaxing reached 90 million for the first time.

With the large-scale planting of mother trees, in the next two decades, the human population increased by 2 billion at one time!

Wang Yanke was also called "the mother of Jiaxing civilization" by later generations.

The follicles of four girls, Wang Yanke, Liangzi, Lele and Jiajia, also anonymously participated in the human breeding plan, paired with Li Weigong's sperm and produced at least 100000 offspring.

The first generation of people with artificial consciousness ability grew up 20 years later and entered the human world. Through the second natural hybridization, the genes of people with consciousness ability were completely preserved.

By the 40th year of the Jiaxing era, the descendants of the first group of people with artificial consciousness ability who were up to the age of 18 began to show various consciousness abilities and become part of the social elite.