Chapter 323: Pairing of Base Pairs

He quickly threw it into the glass bottle and prepared to close the lid. Pen, fun, and www.biquge.info

Syllable!

This thing fell at the bottom of the bottle, and half of the white hairs were all attached to the bottom of the bottle!

Cheng Xiao was stunned for a moment, stared at it, and then laughed dumbly. Where is this parasite? It's just a moldy, unknown thing. Those white hairs are the mycelium of mold, but then there is no moisture, and these hyphae are dry!

Because of the light, I didn't see much of it just now, so I fell for such a big deal!

Frost Moon couldn't help but laugh out loud. She couldn't imagine that the always smart adult would be fooled.

Cheng Xiao couldn't help but be "furious" and threw this thing to the ground, followed by a pair of scissors.

Click......

The sound of plastic rubbing suddenly sounded. Both of them are stunned, how can there be plastic in a person's body?

Immediately get rid of the damn mold. A small plastic bag came out in front of the two of them. The plastic bag is transparent. You can see that there is a very thin piece of paper inside.

What kind of intelligence should this be!

Frost Moon hurriedly came over. When Cheng Xiao unfolded the tissue paper inside, he found that it was a mutilated hand-drawn map.

It seems that this is really important information. After Yu Hou got this information, he was afraid that it would be lost. Most likely, the wound on his leg was cut by himself, and then this bag was placed inside the wound. Then suture the wound yourself.

If so, then the importance of this information cannot be overstated. Cheng Xiao also suddenly understood that the reason why the body at the wound was not rotten was mostly because there were formalin and other things on the plastic bag. It is they who stop the decay of the body.

Looking at the map in his hand, Cheng Xiao was in awe. This Yu Hou is really an iron-blooded hero!

But here comes the problem again. If this is an extremely important piece of information, then he should hand it over to the troops. Why was it in his corpse?

When he was seriously injured, he would have gone to the hospital first and then flew back to Golden State. And in the process, he should have countless opportunities to send this information out, right? But why didn't he send it out? Could it be that Yu Hou is afraid of something? Have you never dared to give this information to the person he wants to give? Until his death, he did not give this information. But what will be around him?

Cheng Xiao turned over the tissue paper, only to see a line written on the back: Be careful with it!!

Three words without a head.

Cheng Xiao turned it over again, but he couldn't see what was drawn on the map.

"Put this thing away first!" Cheng Xiao handed the map in his hand to Frost Moon. With a tool, he went to the corpse and took three fingernail-sized samples and encapsulated them in glass bottles.

Not bad! He worked hard for a long time just for something so big.

After collecting the sample, Chengxiao ordered the robot to pile the grave back as it was.

As soon as he turned around, he saw that Frost Moon was still staring at the map in a daze.

"What's wrong? Still wondering? Cheng Xiao asked.

Frost Moon muttered, "Dad, I seem to remember that Sister Yuxi also has half a map in her hand...... It appears to have been intercepted by BFIPU from an MTH3 intelligence agent a year ago...... Dad, you say...... Will these two maps have anything to do with each other? ”

"Is there such a thing?" Cheng Xiao was a little surprised. After thinking for a while, he said, "Xiaoyue, why don't you do this." You send this map to the Raccoon. I'll go back to Golden State first! ”

"Good! Father! As he spoke, his eyes flashed, and he scanned the map into his brain, encoded it into a picture format, and sent it to the fox through an encrypted channel.

Cheng Xiao flew back to Jinzhou directly, took a sample from Mao Jin, and flew to the Southwest Research Institute. Only there, there is the corresponding equipment.

He was afraid of pain, so he only took a small amount of epidermal cells on the skin.

After arriving at the research institute, Cheng Xiao extracted the DNA from the skin cells under professional equipment, and used helicase to unwind the double strands into single strands. The deoxyribonucleotide single strands are then immobilized on the matrix.

Most of the DNA extracted from Yu Hou was fragments, and almost no complete nucleotide strand was found.

But it doesn't affect either. Cheng Xiao just had to use his nucleotide chain fragments to match the brocade's.

According to the laws of genetics. Half of the genetic material comes from his mother, and half of the genetic material comes from his father. If Yu Hou is really Mao Jin's biological father, then half of his DNA is the same as Mao Jin. According to the principle of base complementary pairing, these unwinded nucleotide single-stranded fragments are automatically paired under the action of hydrogen bonds, and the double strands are re-formed. If you can't pair them, you'll always be single-stranded.

Similarly, after the genetic material on Hou's body is extracted. The children are amplified by PCR and labeled with fluorescent substances. Finally, helicase treatment is applied one more time.

???? Only then will the single-stranded DNA of Hou and Mao Jin be put into the buffer at the same time. The DNA of the brocade is fixed to the substrate and does not move. However, the DNA fragments can be moved in the buffer to achieve the purpose of pairing with the muddy DNA.

After doing these things well, Cheng Xiao estimated the time. After the pairing of DNA reaches a saturation point. He took out the matrix under the microscope that held the DNA of the brocade in place. At the same time, the DNA that cannot be matched will be washed away.

Now, it's time to witness the miracle. If Mao Jin is really a small fish, then half of Yu Hou's DNA fragments are on the matrix. That is, the fluorescence intensity on the substrate is the same as the fluorescence intensity in the buffer.

And the volume of the buffer is naturally strictly controlled, if there are too many, then even if Yu Hou is really the biological father of Mao Jin, the fluorescence intensity will be very weak.

Cheng Xiao took a deep breath. I've been busy for so long, and I've been waiting for this moment! He took the fluorescence instrument and carefully scanned the substrate.

After a "tick", the number appeared on the LCD screen: 68.007

Then, Cheng Xiao swept the instrument towards the buffer, and the data displayed on the LCD screen was 67.981.

Close to 1:1!

Chengxiao's heart was shocked, which means that half of Yu Hou's genetic material can be paired with Mao Jin!

Wet ...... She ...... She turned out to be a small fish!

The instrument in his hand was almost unstable. After spending so many years of hard work, Mao Jin's biological father was really found by himself. But...... Alas...... Looks like I can't talk to her......

Cheng Xiao was very conflicted in his heart. After sighing, he packed up his things and went to find Maojin. If this matter is to be concealed, with the cleverness of Mao Jin, it must not be concealed for a long time, and it seems that it has only been revealed to her little by little. So that she doesn't feel too bad.