Time flies, and two months pass in the blink of an eye.

Like an unstoppable torrent, wrapped in the majestic energy of destroying the world, it pushes the gears of fate to the day when the winner is decided.

In the past two months, Su Yuan and Su Mengyuan have constantly adapted to each other's positioning, and in the face of Su Yuan's power, Su Mengyuan seems to have accepted the existence of the "sister" who has the same emotional experience as himself. I don't know if it's because Su Mengyuan was born pure white, anyway, the relationship between the sisters is still the same, Su Mengyuan is still a little sticky to Su Yuan, and there is no estrangement because of the sudden revelation of the secret.

Su Yuan had such an expression on her face, and she didn't say anything, she had deduced the possible reaction of "herself" before telling Su Mengyuan the truth. The results of the deduction showed that if she told her the details too early, Su Mengyuan's reaction would definitely be very intense, because her emotional experience was not enough to completely resist the impact of her rash appearance, and she would definitely not be able to think about it at that time.

However, when the love is strong, her reaction will not be so strong, just imagine, each other is herself, and if you substitute your heart into each other's situation, you will know the bitterness of the other party, how can she emotionally give the other party more harm?

Whether it is the sisterhood relationship that has been established in the past few months, or because of Su Mengyuan's own kindness, or whether this qiē is completely based on the fact that Su Yuan is also "her", whether it is a means or a trick, in short, what makes Su Yuan more relieved is that Su Mengyuan does not seem to be disgusted with her without her intervention.

And the emotions of Su Mengyuan and Ji Yehao seem to be developing faithfully according to the script in history, and through Tang Yuelin's "obstruction", the two finally had a substantial contact. For this reason, Su Yuan also went to Binhe City to do her ideological work. After New Year's Day, the Su family and the Ji family held a grand engagement banquet for the two. Su Yuan, as a member of the woman's family, was also active at the engagement banquet.

In the past two months, the biggest gain is to work overtime and read the real record book of the ancient head with a spirit of selflessness.

It turns out. Su Yuan and Xia Linfeng's previous speculation was correct, and the ancient head really found clues from the two organelles.

……

"The first is the survival and inheritance of organelles!"

As early as one day a month ago, Su Mengyuan and Ji Yehao, who had just completed their engagement at that time, could be described as newlyweds, like glue, and Su Yuan called Su Mengyuan to the basement with a very faceless phone call, and she and Xia Linfeng explained the research results of the ancient head to everyone.

"As we all know, organelles like mitochondria are relatively independent organelles, and their inheritance does not follow Mendel's laws of inheritance. The reason is that mitochondria have their own genetic material and are in the cytoplasm. In heredity, only the mother's egg cell has mitochondria, while the father's sperm has no mitochondria, only nuclear genes, therefore, mitochondrial inheritance belongs to maternal inheritance!"

As she spoke, Charlene glanced at Su Caiwei meaningfully, "The two organelles found in Suyuan cells are similar to mitochondria, so they are also maternally inherited. ”

Su Caiwei frowned slightly. Said: "In other words, the reason why Xiaoyuan and Xiaomei have these two organelles is rooted in my body?"

Charlene nodded: "So to speak! In order to prove this, I extracted cells from your aunt a month ago. They were cultured in medium supplemented with solid energy medium and it was finally demonstrated that these tissue cells were cultured from peripheral blood. Both organelles are also included!"

Su Caiwei's calm face flashed with a hint of surprise, and her sexy lips opened and closed slightly. "Does that mean ...... I also have the ability to backtrack?"

Su Mengyuan looked at her mother unexpectedly, although she herself had not experienced the powerful effect of [Backtracking]. But just thinking about it is an amazing skill. Now that she found out that her mother also had this ability, she couldn't help but be surprised. It turns out that their family is so against the sky!

Su Yuan looked at Su Caiwei and smiled slightly: "Theoretically speaking, mom, you do have this ability, but in fact, there is still a long way to go before mom really has this ability." ”

"Why?" asked Su Mengyuan and Su Caiwei at the same time.

Su Yuan gave a slightly calm look, pressed his hand lightly, and said with a light smile: "We'll explain this later." Looking at Xia Lin, she said, "Sister Xia, you continue to ......"

Charlene nodded lightly and said, "I just said that the inheritance of these two organelles, in fact, she is a one-way matrilineal inheritance, which can only be passed from mother to child, and if the child wants to inherit again, it can only be passed on by a girl to her offspring...... So let's talk about their survival mode. Through instrumental testing at the molecular level, we found that the genetic material of these two organelles has something special. ”

"What's special?"

Gao Jun looked at Xia Linfang eagerly, but asked subconsciously. After two months of familiarity, there were some benign and gratifying developments between him and Charlene. In his eyes, Charlene is like his girlfriend-to-be.

"Genetic material is hereditary because it is able to code for proteins, and genetic codons are mainly achieved through different combinations of several base pairs," Charlene said. ”

This is common sense, base pairs are repeated, just like the "01" binary of a computer to combine into different information, and it is more advanced than the binary of a computer, because the base pairs are quaternary. Gao Jun seemed to hear the clue from Xia Lin's words, and said thoughtfully: "Are you saying that the genetic material in these two organelles, their bases have special places?"

"Yes. Charlene nodded, "Generally speaking, DNA is composed of four base sequences, namely adenine, guanine, cytosine, and thymine, which are represented by letters A, G, C, T. These four bases are the basic classes common to all living things, and the DNA of almost all living things is coded by these four bases. But when we examined the genetic material carried by these two organelles, we found that they also have special bases that are relatively rare!"

"Special bases?"

Through the guò test, we found that these genetic materials contain a large amount of 5-hydroxymethylcytosine, which is a modified cytosine, which rarely appears in living organisms, and the specific role is unknown, and we can't figure out why this happens for a while, but it should be involved in the regulatory mechanism of genes, which may be related to the switch of genes. ”

Originally found in some phages, 5-hydroxymethylcytosine can undergo a number of actions to help the phage DNA set prevent degradation by the restriction enzyme of the "invaded cell" when it invades the host, that is, the phage's DNA is a foreign invader, but it can prevent attack from the host.

In the ongoing study of organelles, the two organellas have been found to be extremely infectious, and the infection process is very similar to that of bacteriophages infecting bacteria. Once an organelle is activated, it multiplies at the fastest rate, and unlike bacteriophages, it is not dangerous.

Due to an internal mechanism, the number of these two organelles in a cell has been maintained below a hundred, and even in the event of an outbreak of infectivity, they will not cause a devastating blow to the host's cells. They are peacefully released outside the cell to infect other cells.

Magnified 100 times and then 10,000 times between the transfers, this infection process is extremely fast, and in just a few hours, all the cells in the body can be infected, so that the cells of the whole body have both types of organelles.

"So what exactly do these two organelles do?"

Su Caiwei was most concerned about this, her eyes were like electricity, and she asked expectantly.

This question was answered by Su Yuan, and she said: "The ancient head named these two types of organelles, the slightly slender one is called X organelle, and the full one is called Y organelle. ”

Among them, the X organelle mainly plays the role of control, which is equivalent to a control organelle, and comprehensively controls every move of the Y organelle. Just now I said that my mother still has a long way to go before she really has the ability to [backtrack], this is because my mother's X organelle is particularly strong, and the repressor protein it releases almost completely blocks the expression of all genes in the Y organelle, so that the Y organelle does not even reflect the superfluous function except for the minimum maintenance of its own survival. ”

Xia Linfang suddenly thought of something and said, "Auntie often has headaches, but it is actually a kind of feedback made by Y organelles. ”

Su Yuan nodded and said: "From my personal experience, the ability of [backtracking] is strongly consciously controlled, that is to say, the X organelles in nerve cells can directly receive the impulses from the brain, and transmit this signal to all X organelles in the body in the way of guò transmitters, and then the X organelles control the release of repressor proteins and activate the function of Y organelles. ”

Since the Y organelles have been inhibited by the repressor protein for a long time, they inevitably have to "resist", so they are communicated to the brain that directly controls the X organelles in the form of feedback, and I don't know why, Su Caiwei's brain does not respond effectively to the feedback of the Y organelles, probably because there is no awakening [backtracking] ability at all, and I don't know how to command the X organelles, so the X organelles continue to inhibit the Y cells.

Then the Y organelles are not dry, it must be that the feedback is not strong enough, so the feedback is stronger and stronger again and again, and finally reaches a strong response once a month. After a strong reaction, the brain finally activated the protective mechanism, Su Caiwei had a headache, and the X organelle forcibly ordered the Y organelle to enter a short hibernation.

So just like a woman comes to her menstrual period, Su Caiwei has a headache every month or so.

Gao Jun was shocked: "In other words, the Y organelle is directly related to the function of [Backtracking], in a sense, it is a miniature time machine?"

"Yes!"

"It's amazing. (To be continued......)