Ask for an English composition about the feeling of genetically modified food.

Genetically modified crops and organisms have indeed brought us many benefits.

Location.

1. Increase crop yield. After adding fast-growing genes, it can make agriculture

Things grow faster and bigger, thus increasing the number of crops or changing the characteristics of crops.

Sex, make it easier to process, in order to reduce waste, reduce production costs.

2. Adapt crops to unfavorable growth environment. For example, cold-resistant, heat-resistant,

The genes of drought-tolerant crops can make crops adapt to unfavorable growth environment, such as

Drought.

3. Improve the nutritional composition of crops. Mixing genes from different crops to change

The food looks, tastes and tastes good. Even change the nutritional composition of crops, such as

Increase the protein content of rice.

4. Enhance the resistance of crops to pests, thus reducing the use of pesticides.

5. Remove some allergic ingredients from food.

Professor Xin, head of the Department of Biology, The Chinese University of Hong Kong, is engaged in plant genetic research.

For more than ten years, he was the first scientist in the world to extract plant genes, especially plant genes.

Inscription on genetic research. He is currently working with Chinese mainland to study genetically modified rice.

Can improve the yield and quality.

For example, scientists took a fancy to the gene of an Arctic fish and thought it was cold-tolerant.

The function of freezing, so it is separated and extracted, and then implanted into tomatoes to make a new cold tolerance.

Tomato.

However, the public is worried that long-term consumption of genetically modified foods will do harm to human structure.

What's the impact? This problem needs long-term and extensive research, so we should be cautious.

Handle.

Genetic engineering has improved the quality of food varieties, and we are enjoying the benefits it brings.

Benefits, but also worried that this technology has rewritten the password of natural life, will it produce the right one?

Harmful monster food? Genetic modification projects implant foreign genes into the human body.

What effects do our daily foods, such as meat, fruits and vegetables, have on human health?

Still unknown.

Since 1990s, modern biotechnology has been applied to food production.

1994 A tomato sold in the United States was the first transgenic tomato sold in the market.

Food.

Genetically modified food is still considered safe by scientists, but in the future.

Whether it will affect human health is still a mystery. But the ecological impact of genetic modification

Destruction cannot be ignored.

Dr. Yang, director of the Human Genome Center of the Institute of Genetics, China Academy of Sciences, said.

Although there is no evidence that genetically modified foods pose a threat to human health,

But in the long run, whether genetically modified foods will delay the next generation is still inconclusive.

Dr. Yang from the Institute of Genetics, China Academy of Sciences: "As of today, as far as I know,

Yes, for us humans, the risk of eating genes is still quite small. Basically also

Safe. There are two aspects to security, one is security today, and the other is insecurity tomorrow, which is good for us.

What about the long-term impact? This is a problem. Second, the security guard is not our generation, the next one.

What about the first generation? And our safety is not only safe in the bowl, but also unsafe underground.

In a word, direct and short-term harm to our human health is not great.

Or no evidence. "

Scientists say that the most worrying thing about genetically modified foods is not food safety.

On the contrary, it is the impact on ecology.

Genetic food Up to now, we haven't got genetic food, even if the nutrition is good.

How much the quality has improved depends mainly on the resistance of food. I was sick, and with this.

A transgene, this gene is not sick. Worms used to like to eat, but now this

A bug doesn't like to eat; I used to be afraid of herbicides, but now how to use herbicides, it will grow.

All right, all right. The problem of direct harm has not brought danger to our whole ecology.

It is more harmful. Why are these genes resistant to insects, diseases and herbicides, such as

What should we do if the fruit flows to weeds? If we put it in, the creature may be released.

When released, weeds may accept it. At that time, we will be in trouble. We are all on the ground.

Grass, these problems are more worrying.

Professor Xin also admitted that genetically modified organisms will have a certain impact on the ecology.

He believes that every new event will have both positive and negative effects. The problem is how to deal with it.

Reason.

Looking back on the development history of genetically modified crops, we find that biochemical technology has entered the experimental stage from the experimental stage.

It has been applied to crop cultivation for less than ten years. Even the earliest approved genetic modification

The European Union, which specializes in the commercial cultivation of crops, also authorizes local governments when formulating relevant laws and regulations.

Once new scientific evidence is found to prove its harm, farms can be banned from planting approved products.

Transgenic crops. It can be seen that although no research results show that eating base

Because genetically modified foods will directly affect human health, but this concern is not completely unfounded.

Oh, my God.

Generally speaking, there is no obvious difference between genetically modified organisms and protozoa in appearance.

Don't. At present, we can also buy genetically modified foods in the market, most of which are

The ingredients are processed, such as raw soybean, which contains anti-shedding.

Herbicide gene, the foods we can buy in the market are bean drinks and tofu.

, bean flour, bread and cooking oil. Corn contains an alkali that can resist pests and herbicides.

Because, corn oil, flour, sugar, cakes and other processed products. The other is tomato.

Contains genes that slow down tissue softening, and processed products include tomato sauce.

Environmental groups say that big consortia usually do not fully answer the question of genetically modified food safety.

Before the sexual problems appeared, genetically modified foods had been put on the market, and they were still hiding the truth.

The real situation. The genes used by many multinational companies in biotechnology to modify food come from

Creatures that humans rarely eat, such as scorpions, moths, bacteria, viruses and mice, are all

Against nature.

Gao Suxian (Greenpeace Project Officer): "For example, there are some strange examples, such as.

Put the scorpion gene in the corn, hoping that the corn will have toxins, and when I eat this.

When I eat corn, I seem to be eating scorpions or injecting human genes into fish. I ate this.

When eating fish, do you eat people or fish, or eat two things? Even from

I don't know what will happen. It could be serious. "

The concerns of environmental organizations are not unreasonable. According to past experience, quote

Introducing alien species into new habitats may cause ecological disasters. For example, it will be

Black cherry trees were introduced into North America from Germany, and the original rare local varieties have become extinct. Banillo

The introduction of river bass into Lake Victoria in Africa has greatly reduced the number of local fish.

Quantity.

Gao Suxian: "They don't know the impact on the environment and the human body, or the impact on them."

What's the impact on the whole natural ecology? Just put it in nature.

If there is a problem, there is no remedy. "

Gao Suxian: "What has a great impact on the environment is the problem of genetic pollution, because it will affect agriculture."

Planting species in farmland or raising fish in the sea will not be limited to a specific field.

It will propagate through wind sowing, soil, water, etc. It will cross with other traditional crops.

Matching will spread the modified genetic characteristics, so it will continue to spread and expand.

"

Until the research confirms whether genetically modified food is absolutely safe for human body,

Environmental groups say that consumers should at least have the right to know, and they are also fighting for consumption.

Consumers have the right to know whether the food they buy contains genetically modified ingredients, that is, for genetically modified foods.

Establish a food labeling system to protect consumers' rights and interests. At present, different countries have different

Label, but Chinese mainland, Taiwan Province Province and Hongkong are also genetically modified food labels.

The future direction of standard system research.

Another controversy caused by genetically modified foods is moral issues.

Gao Suxian: "Many vegetarian groups are also opposed because they are vegetarians, for example."

If you put animal genes and bacterial genes, these are animals or insects that they don't eat.

Of course they object, because they are vegetarians or religious people, and they don't eat pigs.

Meat or beef, if the pig's gene is injected into rice, when they eat rice but don't know it already contains it.

Animal ingredients, they will be very opposed, this is a moral issue. "

Yang: "There is a profound social, religious and economic background here.

What do Hui compatriots want from him after eating the pork gene in the rice? Do you want it?

Tell him? "

This is also the right to know emphasized by environmental groups, and some scholars think it is necessary to take this as a basis.

Because genetically modified foods are labeled, the public has the right to choose.

New Shi Wen: "I quite agree. It would be better if vegetarians would choose.

. "

At present, different countries have different labeling policies for genetically modified foods. The first is to include

Foods containing genetically modified ingredients should be labeled. Another method is to sell it in the market.

Only those genetically modified foods that are not necessary for the original variety can pass the safety test.

Equivalent genetically modified foods must be labeled.

Genetically modified foods are found in North America, Europe, Australia, Japan and South Korea.

As for the labelling system, as for the mainland of China, the Ministry of Health issued a decree as early as the early 1990s.

Foods containing new resources, including genetically modified foods, must be accepted by a special committee.

Safety assessment, and the new resource food label must be attached to the packaging before it can be sold in the market.

The legislation of genetically modified food is still under study. Hong Kong and Taiwan Province Province are also one.

For example, we are studying the future direction of the labeling system for genetically modified foods.

New: "It seems that in Hong Kong, in other places, if you get used to it, you don't need to label it."

. "Biotechnology has only been applied to food production in recent years, and now all the genes have been modified.

Before cooking food, it must undergo a strict safety assessment by the manufacturer and the source regulatory agency.

Can be sold in the market. Take the United States, which produces the most genetically modified crops, as an example.

Cooking is regulated by the Food and Drug Administration, the Environmental Protection Agency and the United States Department of Agriculture.

. Genetically modified foods must fully meet the conditions of food safety and environmental assessment.

In order to sell in the market, the whole evaluation process may take several years.

The safety assessment of genetically modified food is based on the World Health Organization and the United Nations Food and Drug Administration.

The principle of "substantial equivalence" recognized by the Food and Agriculture Organization and the Organization for Economic Cooperation and Development.

Go on. The so-called "substantial equivalence" means that if the ingredients of a new food are the same as those of another new food.

Traditional foods or ingredients are essentially equal, and new foods or ingredients can be regarded as traditional varieties.

Just as safe. If there is a difference between the two, the relevant regulatory authorities will make another assessment.

And animal testing.

New Shi Wen: "Generally speaking, I think it is safe, and some of it can be improved."

It will be very useful after surgery, and it is inevitable that future creatures will use this technology, and it will be used in this respect in the future.

A lot. "

Scientists believe that it is undeniable that genetically modified food will be the next 2 1 century.

Main grain.

As early as centuries ago, farmers improved their farming by using traditional hybridization methods.

With the development of genetic engineering, today, scientists have been able to cultivate through biotechnology.

Things grow faster and better, which will greatly improve the food problem of people in poor countries.

Help! But this is the same as the problem derived from human genetic cracking, and changes naturally exist.

With the crisis of destroying nature. The problems in the development of genetically modified food are worthwhile.

We reflect, what we need to measure is what genetically modified food has brought to mankind.

Whether the advantages outweigh the disadvantages or the disadvantages outweigh the advantages.