The wasteland is reborn and the countryside is at hand

Shan Yuehong's laboratory is diagonally opposite Si Chen's laboratory and directly opposite Li Yi's laboratory.

So Li Yi, who was in Sichen's laboratory, could clearly see the scratches on Shan Yuehong's arm.

Even if it is continuously rinsed with clean water, the blood is still flowing.

Wounds scratched by zombies have no coagulation function. Shan Yuehong was undoubtedly scratched by a zombie.

"She can't be saved," Li Yi concluded in his mind.

Shan Yuehong also knew her situation. The fate of her colleagues was vivid in her mind. She might turn into the man-eating monster outside at any time.

They are all researchers, and they can vaguely guess that the cause of human mutation should be a virus that can be transmitted through blood.

So Shan Yuehong kept cleaning the wound, praying that the virus had not entered her body, hoping to remove it in this way.

Li Yi shook her head, "It's useless," she said.

They had been researching for three years in the last life, but they had been unable to find antibodies to the zombie virus.

Because "antibodies" simply don't exist.

The zombie virus is actually a brand-new set of genetic subcodes, which are base pairs composed of two bases "SN" that humans have never seen before.

After this group of base pairs enters the living body, it will quickly split itself into two independent sub-codes "S" and "N".

One of the subcodes will be recombined with other bases of the living body, and at the same time, the other subcode that has not been combined with the bases will immediately disappear and die.

The subcode recombined with the bases will strongly change the DNA molecular structure of the living body, causing the infected living body to produce a new gene chain. Humans in the end of the world call this change "genetic mutation."

A living body that undergoes genetic mutation will condense a "crystal nucleus" in its body, which is also a symbol of genetic mutation.

There are two directions of genetic mutation, one is "S-type mutation" and the other is "N-type mutation".

After the gene chain is invaded by the sub-code "S", the living body will undergo "S-shaped mutation", and the crystal nuclei produced by the "S-shaped mutation" are stored inside the brain of the living body.

The cutin function of S-type mutated living organisms will be strengthened, causing the cuticle structures such as teeth, nails or horns to become harder and sharper, and the base pairs composed of "SN" will be produced in these cuticles, becoming viruses with the ability to infect. .

Moreover, the red blood cells in the body of a living body with S-type mutation will be rapidly consumed, and then it will crave more red blood cells, so that the brain is completely dominated by the "S-type virus", thereby attacking other life forms indiscriminately.

The S-type mutant life form obtains red blood cell supplements by eating, which is similar to the zombies in the movie, so the "S-type mutation" is called "zombie transformation", and the corpse transformation life form is also called "zombie".

Living bodies bitten or scratched by zombies will be infected by the virus in their horny cells, and then mutate.

After the "N" type subcode is combined with the gene chain of the living body, the new gene produced will not damage the brain of the living body. The crystal nuclei produced by this mutation are stored in the heart.

N-type mutation can also fully reveal the hidden genetic abilities of the "living body", allowing the living body to obtain its own hidden "superpowers".

However, most living organisms do not possess hidden genes, so even if they are lucky enough to undergo "N-type mutation", they cannot obtain "superpowers".

The only advantage is that its gene can no longer be combined with the subcode "S". In other words, it is immune to zombie viruses.

However, life forms with hidden genetic abilities will acquire abilities that are different from ordinary people after N-type mutation occurs.

As long as you can stimulate your own abilities, then you will be the top existence in the apocalypse.

Some powers are to control elements in nature, while others are to mutate the body, grow wings, or turn the body into some kind of object.

In short, the abilities produced by "N-type mutation" are diverse.

People define "N-type mutation" as "evolution". Life forms that undergo N-type mutation but do not activate superpowers are called "immune", while life forms that activate superpowers are called "evolvers" .

Because of this, everyone hopes to "evolve" themselves. Even if they cannot obtain superpowers, they can still be immune to zombie viruses, which has many benefits.

However, the subcode "N" that can undergo N-type mutation can only be combined with a specific gene sequence;

The S-type mutation is open to all comers and can adapt to various gene sequences;

Simply put, "S" is faster and easier to invade biological genes than "N", so the chance of "N-type mutation" is less than one ten thousandth of "S-type mutation".

No one will experiment with their own lives, so no one is willing to be injured by zombies to win a one-in-[-] chance of evolution.

After Li Yi discovered the base pair of "SN" in her previous life, she had been looking for a way to separate "S" and "N".

Finally, a "cleaving enzyme" was found in the crystal nucleus of the zombie brain. After hundreds of cleavage methods, Li Yi successfully separated the "SN".

After the serum containing only the subcode "N" is injected into the human body, the person will not be in danger of "decomposition", but will 100% "evolve" and become "immune". Lucky people can also become " Evolver".

Li Yi didn't know why she was reborn. She speculated that it might have something to do with the "gene serum" she was injected with before her death.

Cruel scenes were still happening outside, but Li Yi couldn't wait to know if her body had changed long ago, otherwise how could she somehow survive and return to the day when the end began.

Thinking of this, Li Yi tried to control the energy of her body. She closed her eyes and felt it, but this body had no other response except its heartbeat.

Li Yi was not in a hurry. She felt it carefully and felt a little cool in her heart.

Is it a crystal nucleus?

Li Yi was delighted, but she didn't realize that she had any special powers.

Am I just an immune?Can everyone who is immune be reborn?

Li Yi shook her head, she knew that was impossible.

If every immune person could be reborn, the zombie virus would have been controlled long ago.

Until now, Li Yi is not sure whether his rebirth was due to evolution or other factors.

"Ah, Xiao Yi, what are you doing!" Si Chen exclaimed.

She saw Li Yi holding a scalpel and slit her own wrist with the knife.

For a moment, words such as "cutting wrists" and "suicide" flooded into Si Chen's mind. She had thought that Li Yi had become indifferent before, but now she felt that Li Yi might be under too much pressure. After being extremely rational, Finally collapsed.

In fact, Li Yi just wanted to take some blood for research to see if there was a gene sequence containing "N" in his DNA. He was also afraid that scratching his finger would affect the operation of the experimental process, so he scratched his wrist. A little bit of skin.

If she knew what Si Chen was thinking at this moment, she would be so angry that she couldn't laugh or cry. Not only was her best friend higher in IQ, she was also very quick-thinking and had an extremely rich imagination.

Where is this going?