"Biologists conduct scientific research on selected biological species to reveal a certain phenomenon of life with universal laws. At this time, the selected biological species www.biquge.info the model organism. ”

For example, Mendel used peas as his experimental material to reveal the genetic laws of the biological world, while Morgan chose Drosophila as his experimental material to study chromosomal behavior.

Model organisms often have some basic things in common, starting from being able to answer the researcher's concerns, being representative of a large group of people in the biological world, and being harmless to humans and the environment, being easily available, and being easy to raise and reproduce in the laboratory.

Due to the different requirements of the experimental process, sometimes it is required that their generation is short, they have many generations, and the first three generations must be rooted and sprouted, and they also need to be easy to carry out experimental operations, especially the methods of genetic manipulation and phenotypic analysis.

Commonly used model organisms include bacteriophages, Escherichia coli, Saccharomyces cerevisiae, Caenorhabditis elegans, sea urchins, fruit flies, zebrafish, Xenopus toads, and mice.

In botanical research, Arabidopsis thaliana, rice, etc. are more commonly used.

These two kinds of Yang Tian are not seen in the system, after all, the second part is animal experiments, and these are plants.

As soon as the system explained this, Yang Tian suddenly realized that his posture had risen again!

Come on!

Yang Tian unlocked the first ...... Sounds a little weird?

Ahem!

The first animal that Yang Tian summoned was a guinea pig.

The toad is so disgusting with pimples all over his body, and the frog is not slippery and uncomfortable to hold, there are only three options in total, and it can only be a guinea pig.

A burst of white light flashed, and a white-haired and red-eyed mouse appeared in front of Yang Tian along with the cage.

Yang Tian stretched out his hand to open the cage, pulled up the tail of the mouse and lifted it upside down in the air, and looked at it carefully.

Just like the real thing!

Not to mention the white hair all over the body, even the beard at the corner of the mouse's mouth is delicate!

Yang Tian stretched out another finger and poked at the mouse, and the finger belly was against the fluff on the mouse's belly, and the soft touch came, even if he had already understood the power of the system's simulation, he couldn't help but be amazed.

"Squeak!"

The mouse called a few times eagerly, and Yang Tian was even more surprised.

In this system space, apart from the electronic sound of the system, he has never heard any other sounds, and now mice will bark, will animals in the future also bark?

"Squeak!"

"Ahh

There was a tingling pain from his fingertips, Yang Tian couldn't help but let go, and the mouse instantly fell freely, and a round bead of blood appeared on his finger.

"Ding! If the host is bitten by a mouse, the chance of suffering from rabies is 50%, and as a punishment, the teaching space will be reduced by 0.5 hours! ”

Well?

What does that mean!

Why is it inexplicably missing 0.5 class hours?!

"The system reminds the host to pay attention to the operation specifications when conducting animal experiments, the system provides a panoramic realistic environment, and there is a high probability of mistakes caused by improper operation of the host in reality, and then it is not only a symbolic punishment of 0.5 hours, but the host is also likely to die."

"Is it that exaggerated?"

"The system warns the host, please take it seriously, rabies is a fatal disease, zoonotic, and the clinical manifestations are unique hydrophobia, fear of wind, laryngeal muscle spasm, progressive paralysis, etc.

The mortality rate of rabies in humans is almost 100%, and there is an incubation period of up to several years before the onset of rabies, and once the disease occurs, the patient will die of respiratory or circulatory failure within 3 to 6 days. ”

"So miserable?!"

Yang Tian held his hand, and the wound on it had been automatically repaired by the system after the punishment was executed.

"The system reminds the host that there are no contraindications to rabies vaccination, no strenuous activity during the injection, no tea, coffee and alcohol are contraindicated, in addition, it is also necessary to avoid eating meat, and it needs to be washed with soapy water for 15 minutes before injection, and then disinfected with iodine."

"The injection procedure is 0, 7, 14, 28 days, or 0, 7, 21 days but the first two, if the condition is severe, you also need to follow the doctor's instructions to inject immunoglobulin."

So troublesome! It's going to be tossed for a month!

Yang Tian was afraid for a while, it was a month!

You can't eat meat for a month, you're going crazy......

The last mouse had already been recovered and disappeared by the system the moment it fell to the ground, looking at the light screen that had re-risen in front of him, Yang Tian moved his fingers and chose something else.

A frog appeared in front of Yang Tian, its blue skin, still with mucus, and its cheeks bulging, Yang Tian reached out to grab it, but it was too slippery, and it slipped out of Yang Tian's hand with a sloppy sound.

"Quack!"

The frog fell to the ground, barked, and was decisively recovered by the system, and at the same time:

"Ding! The host's escape causes the frog to defect, causing a 50% chance of a laboratory accident, and as a punishment, the teaching space usage hours are reduced by 0.5! ”

Yang Tian's face was full of black lines, he re-selected the toad, and reached out to pinch it-

"Poof—"

A stream of turquoise liquid erupted from the toad's parotid glands, shooting straight into Yang Tian's eyes, and a stinging pain came instantly.

"Ding! The host squeezes the parotid gland of the toad, causing venom to leak out, resulting in a 50% chance of laboratory accidents and a 50% chance of blindness of the host. ”

it!

And there's more!

System, you did it on purpose, didn't you!

Yang Tian collapsed instantly, but the light screen rose at this moment:

[Is it loaded with the correct operating specifications for handling experimental animals "mice", "frogs", and "toads"?] 】

I'll make it!

There's an experimental norm, why don't you say it sooner!

Isn't it just that you want to deduct your school hours? Isn't that interesting? Interesting!

"If the host is detected to speculate on the system, the image of the system will be damaged, and the teaching space will be reduced by 1 credit hour!"

I......

System, are you a dad?

The little one is kneeling for you, hey!

The school hour shrank instantly, Yang Tian's heart hurts, and even when he came out of the space after two classes, his eyes were black.

After 15 class hours, there is only 0.5 left!

"Yang Tian, what's wrong with you, why do you look like a dead father?"

"!" Can this be said nonsense?

"Hey, look, that girl over there has been looking at you for a long time, shouldn't it be because of you?" The little fat man came up in a hurry.

"Who?" Who else likes themselves?

Yang Tian turned his head to look, and his hairs exploded in an instant.

It's Xie Xin!

This girl is indeed laughing, but how does it feel and how does it look bad?

And also!

What are you trying to do with the clattering sound of your fist raised!

Brother Ke never agreed to practice with you!

"I don't know her! Let's go! ”

Yang Tian pulled the little fat man and left, years of experience told him that he couldn't afford to provoke this kind of female man who didn't need to explain his life!