21 cool facts: It seems interesting, but there are few places to use it

American scientists have cultivated genetically modified mosquitoes in the laboratory and released 750 million genetically modified mosquitoes in the test area, allowing these mosquitoes to mate with wild mosquitoes and pass on the genetic defects to their offspring, thus effectively controlling the number of mosquitoes.

When it comes to mosquitoes, I believe everyone will be very disgusted, especially in the hot summer night, the buzzing around the ear is really difficult to sleep, and even wake up to find some inexplicable bulging, painful and itchy. Mosquito coils, mosquito nets, anti-mosquito bracelets and other products have also been invented for mosquitoes. However, every time I think of the two mosquitoes that were fat like flies in the mosquito net, I can't help but feel a deep sense of powerlessness to eliminate mosquitoes.

Many people may not know it yet, thinking that being bitten by a mosquito will at most be a bag. In fact, mosquitoes are the animals that cause the most human deaths in the world, because mosquitoes carry malaria parasites, as well as a large number of bacteria and viruses. When the pathogen is directly injected into the human body to spread the disease. According to research, there are more than 80 kinds of diseases transmitted by mosquitoes. More than 700,000 people die each year from mosquito bites.

The harm of mosquitoes to human beings is huge. The whole world is trying to eliminate mosquitoes. However, although the effect is effective, there is no way to completely eliminate them.

As a result, scientists started with genetic engineering and cultivated a variety of genetically modified mosquitoes in the laboratory.

In the beginning, American scientists bred mosquitoes that could effectively fight malaria, but these mosquitoes were too poor to survive once they were put into the wild. However, scientists soon re-bred transgenic mosquitoes with stronger vitality. Malaria has the ability to resist infection. After putting them into the wild and breeding with wild mosquitoes for many generations, the mosquito population can have the ability to resist malaria infection, thereby reducing the spread of malaria.

However, environmental protection organizations pointed out that although this mosquito is resistant to malaria, it has strong vitality, and the final consequences of the modification are difficult to measure, and further research is needed to release it into the wild.

The mosquito that will be released now is a male mosquito, which was transformed by the British Oxford Insect Technology Company. When the modified male mosquitoes mate with female mosquitoes, the female offspring carry a protein that causes them to die in larval stages, and the remaining male offspring survive to continue mating with the remaining female mosquitoes, allowing wild The number of mosquitoes dropped steadily, achieving the purpose of eliminating mosquitoes.

Previously, hundreds of thousands of genetically modified Aedes aegypti mosquitoes were released in Brazil, which reduced the local mosquito population by 85%. However, the researchers said that the genetically modified mosquitoes would breed with other species of mosquitoes, and these offspring may be There will be a greater ability to adapt, and ultimately have unpredictable consequences.

Today, the rapid development of genetic engineering has cultivated high-quality, resistant crops and livestock, which has greatly increased grain production. However, we have become cautious, especially now that genetically modified foods are on the market in large quantities, and they have a great price advantage, but whether there is potential harm is unknown.

Nowadays, genetic engineering is used to eliminate mosquitoes, which makes people even more worried. We don't know whether the outcome is within the controllable range, and this time hundreds of millions of genetically modified species have been released. If these mosquitoes appear in the In the natural environment, will they slowly become extinct according to the genes set by humans, or will they produce more terrifying adaptability and other dangers through mutation? I think it's more likely the latter.