In the Jianghan Hotel, Yue Guanchao informed everyone of the results of the three of them exploring the Dragon King Temple at night, and they didn't expect that the fish god was likely to have an entity.

After listening to their words, Sun Daqiao asked: "Don't mention anything else for the time being, is the Jiang sturgeon really from Shennongjia?" ”

Song Siyuan nodded matterfully and said: "Daoist Cui mentioned between his words that they are going back to Wushan, which is precisely the southwest entrance to Shennongjia, if what he said is true, then this Baijiang sturgeon may indeed come from Shennongjia." ”

She paused and looked at everyone: "Of course, it's not that all the albino animals are from Shennongjia, it's entirely because the mutant gene of this Baijiang sturgeon is similar to the albino animals in Shennongjia." ”

"Do you hear that, we have all moved the stools, and Mr. Song is going to teach us a new way of saying it again."

Yue Guanchao and a few people gathered around to look at Song Siyuan, they also wanted to know what this gene was, and they also wanted to know the secret of albinism.

Song Siyuan coughed a few times, drew a double helix structure diagram similar to a twist on a blank piece of paper, and showed it to everyone.

"Hey, isn't this Tianjin marijuana flowers, the genes of Westerners who dare to love them are marijuana flowers." Yue Ercang teased.

Song Siyuan nodded at them: "It is probably a similar structure, this structure is called gene sequence, in 1909, the Danish biologist John Sun changed the name of the 'genetic factor' he proposed to be more accurate 'gene' according to Mendel's genetic law basis." ”

"Since then, many scientists in the West have begun to study genes, using conceptual theories, began to experiment with the existence of genes, and at present, through fruit fly experiments, it has been proved that there are indeed genes in organisms, and it is clear that genes are dNA fragments with genetic effects, which are arranged in a certain regular linear arrangement, and it looks like intertwined cannabis flowers."

Her eyes became mysterious: "Not only animals, but also in nature, including people, any living thing has its own genes, and genes can be inherited through offspring. ”

"At the same time, genes are also divided into dominant genes and recessive genes, most organisms have both dominant genes and recessive genes, recessive genes are hidden deep in genes, only under special conditions will appear, in addition, the genes of organisms will also undergo subtle and special mutations, so as to form individuals different from other groups."

Song Siyuan's prose involved so many professional terms, everyone frowned when they heard it, and saw that their understanding was relatively obscure, so they had to explain it again in popular language.

She thought for a moment and continued: "This is like the black pheasant we saw in Qinling, this kind of chicken belongs to an individual that is different from the normal, biologically, such an individual does not exist, but it may be that the recessive genes in the previous generation have been activated, so they have a different appearance." ”

"At that time, I told you that the ancestors of this pheasant probably crossed with other birds, and in the process of biological evolution, a large number of gene fragments were fused into it, so that the genes of the black pheasant were covered, and this gene is the recessive gene."

"Under normal circumstances, recessive genes are not reflected, and only under special conditions will recessive genes replace normal genes after the normal genes fail, and this special condition may be natural disasters and man-made disasters, may be species hybridization, may be plague diseases, and may also be environmental alienation."

Song Siyuan paused, picked up the pen and drew a marijuana flower: "In short, after the recessive genes of ordinary pheasants are expressed, they finally show this effect of blackness, but there is one thing that is completely impossible, that is, it turns white." ”

Yue Guanchao asked, "Why?" Aren't there white rabbits and white pigeons? ”

Song Siyuan nodded at him: "You're right, but wild rabbits and wild pigeons are not white, they are artificially bred to have white characteristics, or in other words, they are the result of human intervention, natural evolution, there is a high probability that there will be no pure white animals." ”

"This is because, in nature, white is the most difficult color to camouflage, and if animals want to live safely in the wild, they use physical color to camouflage, and they mostly evolve their physical appearance according to the environment in which they live......"

For example, tigers and leopards in East Africa are mostly burnt yellow with mottled stripes, while in the Arctic ice fields, even bears are white, and in the jungle, there are even stick insects that disguise themselves as bamboo poles, and dead leaf butterflies that disguise themselves as dead leaves.

The evolution of organisms needs to evolve their physical characteristics and colors according to the external environment, and they adopt such an evolutionary strategy in order to better avoid natural enemies and survive.

Unless it is in a completely white ice and snow environment, the white in any natural environment is more conspicuous, and it is not easy to camouflage, nor is it easy to hide in the natural environment.

It can be said that the evolution of the physical appearance of organisms will change to red, orange, yellow, green, blue, purple and black, but only will not evolve to white, and the genes of animals understand that as long as they evolve to white, most of them will be difficult to hide themselves, and the probability of encountering natural enemies will also be greatly increased.

In other words, white animals are easier to find in nature, which leads to predator hunting and human hunting, and when the mortality rate of white animals is high, it is difficult for it to have offspring, so it is difficult for this albino gene to survive.

White is the forbidden color of life evolution, and it is also the color of death!

Under the rules of biological self-interest, animals will never actively evolve into colors that are not conducive to survival, and if white appears in the population, it is very likely that there is a genetic mutation.

Song Siyuan said that the source of albino animals in Shennongjia has come out: "There are a large number of white animals in Shennongjia, either because of genetic mutations, or because the environment of Shennongjia has changed and become suitable for the survival of albino animals, or both." ”

"The same is true for river sturgeons, river sturgeons are mostly gray and black, if it is a white river sturgeon, it is very likely that the previous generation grew up in a special environment, and the closest environment to Jianghan is Shennongjia, plus after Cui Daoshi fed food, it has been hinted that the river sturgeon is from Wushan, then, my guess is probably accurate."

Yue Guanchao heard her say until now, and said slowly: "So far, we basically know that the secret of Guanluoyin is in the Baijiang sturgeon, Cui Daoist and the god suppressor are in a group, and at the same time, these god pressure craftsmen designed the flower boss, the purpose may be in Shennongjia's Beifu Yiguan Mound, these news are brought together, perhaps, Jiang Sturgeon went to Wushan, it is also related to the Beifu Yiguan Mound." ”