What are the benefits of technology?

According to truthabouttrade. On February 5, 2005, the first medical product of biotechnology was synthetic human insulin. Scientists have created "artificial insulin" by injecting human insulin into bacteria. Synthetic artificial insulin brings good news to diabetics, who have been using insulin extracted from pigs, which will cause complications.

Nowadays, scientists use dna technology to combine with ordinary crops to produce various drug mixtures. These improved crops that can produce drugs are often called "drug crops". Scientists have successfully implanted genes into barley, corn, carrots, potatoes, alfalfa, bananas, rice and tomatoes. Improved genetic crops can not only produce protein in milk and tears, but also make potential vaccines.

Biotechnology crop rice contains improved protein, including lactoferrin and lysozyme. These two kinds of protein can be found in human milk, saliva and tears, but they are rarely ingested through daily diet. The mass production of these two kinds of protein may help to alleviate hunger in many parts of the world. Diarrhea caused by bacterial infection kills millions of children every year in developing countries. Lactoferrin and lysozyme have been proven to help reduce this infection.

Unfortunately, we can often see or read stories of panic caused by exaggerating biotechnology, but the positive effects of biotechnology have not been reported accordingly. It is very important for people to evaluate the quality of genetically modified crops fairly. Critics may aim to restrict the use of medicinal crops. But this does not mean that the development of these technologies will stop.

The research on the production of insulin-like growth factor (igf- 1) in rice and tobacco has achieved certain success. Transgenic crops that can produce antibodies against rabies and intestinal cancer have also been successful.

In the past 30 years, eggs have been used to make vaccines. Unfortunately, not all vaccines can be made in this way. For example, human oncosis virus can only grow in human cells, so it is impossible to cultivate oncosis vaccine in eggs. There are about 140 kinds of this virus, most of which will not cause any harm, and a few will cause cancer. According to the World Health Organization, 600 million people are infected with spinous process virus all over the world, and more than 20 million people are infected in North America alone. Pathogens cause 500,000 cases of cervical cancer every year, mostly in developing countries.

Salt-tolerant and drought-resistant crops can maintain or even increase the yield of degraded land. Insect-resistant crops will continue to increase production by preventing pests. Herbicide resistance will allow farmers to protect valuable topsoil. Biofuels will help reduce the demand for imported oil.

In the future, there will be more evidence that agricultural biotechnology will bring benefits to the world.

Advantages and disadvantages of computers.

Now the society is more and more developed, and computers have certainly become an indispensable information tool for people. Basically every family has a computer. But the key is how to use it.

Computers bring convenience to people. It allows people to send emails, which can be transmitted to each other's computers very quickly, much faster than sending letters in the post office. We students will also encounter some problems when studying, and we can't find relevant knowledge in reference books. At this time, the computer has become a good helper for everyone to find information. If you want to know about state affairs, you can buy a newspaper without going out. There are a lot of first-time news on the Internet. In addition, word can also write articles or draw statistical charts on the computer. ...

Although computers have many advantages, they also have many disadvantages. Some students are addicted to surfing the internet, and computers are not used in the right way, which leads to a sharp decline in their studies. Some students actually play truant or secretly take home money to play in order to go to Internet cafes. Playing computer for a long time is bad for your eyesight. There are many typical examples in our class.

I hope those students who are addicted to the internet will wake up quickly and let themselves use the computer correctly.