What does human gene sequencing complete? What does this mean?Gene research is the double -edged sword

Humans studying their own genes is a very interesting thing, as if a program is studying its own code.

However, human genes are much more complicated than the code of any program, because human genes contain more than 3 billion base pairs, and the number is extremely large. But we are pleased that the first step of human exploration of our genetic mysteries has been realized. "Science" magazine announced that human gene sequencing has been completed due to the efforts of scientists from various countries. what does that mean? Does it mean that human beings can be promoted to "creator" since then? Not that simple, after raising an incomplete example, human beings have completed all gene sequencing, which is equivalent to knowing all Chinese characters, but knowing all Chinese characters from these Chinese characters to write a composition is still far worse. Essence

So why must humans study their genes?

First of all, this is the need to trace the roots of human beings. Born as a person, we always have such a question: "Who am I, where do I come from?" To figure out this problem, you must start with genes. Our body is composed of cells, and the basic organic matter that forms cells is protein, and different proteins will eventually show different shapes. So what determines the difference in protein? Is the alkali base. It is no exaggeration to say that even if there is only one alkali base different, then it may show a completely different appearance characteristics. Therefore, it is the most reliable method to start with the genes of human beings. Before the start of genetic research, human beings had been arguing about their origin, and everyone thought that their place was the place of origin of human beings.

Human beings have evolved a ridiculous view of the structure of their own origin, that is, people with different skin colors are independent.

This unreliable view has received the support of many people, but this view is wrong at first glance, because there is no reproductive isolation between the species in the world, which explains that all the world in the world in the world Human species belong to a common species. It is not the same species that looks like the same species. For example, the Asian elephant and the African elephant are the species that have been evolved alone in their respective living areas. Although they are all elephants and their appearances are very similar, they are essentially two species, so they exist existing Reproductive isolation cannot breed the next generation.

Everyone in the world belongs to the same species, and this view is confirmed by the later genetic research institute.

Studies have found that any man in the world has the same Y chromosomes, and it can also be found in a well -known Homo sapiens living 250,000 years ago, so this Homo man is also called "Y chromosome Adam". Similarly, women all over the world have the same mitochondrial DNA, and they can also be found in a female whites living 150,000 years ago. Obviously, humans around the world belong to the same species and have common ancestors. The gene similarity between different races reached 99.9%. Maybe you will question, only 0.1%, will the external gap so exaggerated? Don't forget that human genes contain more than 3 billion base pairs, even if it is 0.1%, it is millions.

The exterior gap between humans and chimpanzees is not large? Gene similarity can also reach 98%, and the genetic similarity of man and banana is 50%. In addition to tracing the roots, genetic research also has more realistic significance, such as treating genetic diseases.

Genetic diseases are essentially caused by genetic mutation. Therefore, as long as the genes that are mutated are still there, genetic diseases cannot be completely cured. A few people's genetic diseases are cured on the surface. For example After the expression of genes, the mutant gene is still there, and it may happen again in the future. Therefore, if humans want to completely get rid of the problem of genetic diseases, genetic research must be carried out. Only by re -editing pathogenic genes can it be cured fundamentally.

Genetic studies can trace the roots of human beings to the birth of themselves, and they can also treat the long -term genetic disease that has troubled humans in the future, but it also has a terrible side.

When human beings have a complete understanding of genes, they can edit them arbitrarily, which means that humans can create gene weapons only targeting only a certain type The degree of sense is different, which is very terrible, so genetic research is a double -edged sword. But we cannot stop, and human civilization must continue to improve, and we cannot waste food due to choking. The same scientific theory can not only improve human life, but also use it to destroy humans, but it is not a scientific fault to do good or evil.

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