1. Potato Non-transgenic potato: ugly appearance, generally dark color, pitted surface and irregular skin color. After peeling, the surface will soon turn black and the skin will turn white. \x0d transgenic potato: smooth surface, shallow potholes and light color. After peeling, its surface has no obvious change. \x0d test method: x0d transgenic corn: sweet, crisp, plump and graceful, with almost the same head and tail. X0d corn is the earliest, widest and most widely used genetically modified corn, so you should be cautious when buying any corn food, even if the corn sold in the supermarket is Wowotou. 3.X0d transgenic tomato: bright red and beautiful in color, hard in fruit and not easy to crack. Most tomatoes and papayas in X0d supermarket are genetically modified, so we are determined not to buy them. In safety and quality, individual farmers are much better than supermarkets. Especially don't be superstitious about foreign supermarkets. Things look good, but \x0d is not delicious. There are too many bad fakes. \x0d5。 Carrots are not genetically modified carrots: superficial. From beginning to end, from coarse to fine, the head protrudes outward. \x0d Transgenic carrots: The surface is smooth, generally straight, the tail is sometimes thicker than the middle, and the head is concave inward. \x0d Note: Carrots are only available in autumn and winter, and are generally genetically modified in summer. 6. Soybean \x0d Non-GMO soybean: oval, a little flat. The navel is very shallow.
Question 2: Are all the corn we eat now genetically modified? How to distinguish genetically modified corn from non-genetically modified corn? The vast majority of corn around us are hybrid offspring, and hybrid corn is transferred into genes in batches, which is equivalent to transferring from A variety of corn to B variety in batches.
There are great differences between hybrid corn and transgenic corn. Transgenic corn is only transformed into a few genes and is unlikely to carry harmful genes.
Because hybrid corn is transferred into genes in batches, it will inevitably bring in a lot of harmful genes. These harmful genes will not be shown in the first generation hybrid, but they will inevitably show the characteristics of harmful genes in the second or third generation hybrid. Therefore, hybrid corn cannot be stored for many years. According to China's theory that old habits die hard, you will be sterilized if you eat corn that you can't grow for several years!
There is no difference in appearance between transgenic corn and hybrid corn.
Question 3: The difference between transgenic corn and non-transgenic corn is that other genes are transferred into ordinary corn to become transgenic corn. It has different traits (traits controlled by genes) from ordinary corn.
Question 4: How to buy non-GMO corncob online? People who oppose the planting of genetically modified crops are not all because of scientific doubts (not to mention whether their reasons are valid), but some are because they think that human beings should not plant "unnatural" crops. However, none of the crops planted by human beings today are "natural", and they are all artificially modified. This transformation took place in the Neolithic Age about 654.38 million years ago, and humans began to try to grow food. In the process of planting, some plants were found to have desirable characteristics (such as higher yield and better taste), so their seeds were preserved and continued to be planted. In the next generation, choose the best "quality" to plant, so that you can get "excellent" varieties through selection from generation to generation. Darwin later called this process "artificial selection".
This process is very slow. In the Neolithic Age, it took thousands of years to domesticate a wild plant. 17 19, British botanist fairchild invented a method of creating new crop varieties-hybrid breeding, which hybridized different varieties of crops and cultivated varieties with good quality in future generations. At the beginning of the 20th century, the establishment of genetics provided a theoretical basis for crop breeding, and botanists used cross breeding methods to create many new varieties with great practical value in agricultural production. These new varieties are unknown in nature.
"The safety of genetically modified food has not yet been determined", which is a common statement in the media. This statement is not accurate. International authoritative organizations unanimously agree that genetically modified foods currently approved for marketing are safe. In 2002, some countries in southern Africa consulted the United Nations about the safety of genetically modified foods. On August 27th, the United Nations issued a statement saying: "According to information sources from various countries and existing scientific knowledge, FAO, WHO and WFP believe that eating food containing genetically modified ingredients as food aid for southern Africa is unlikely to pose a risk to human health. So these foods are edible. These organizations confirmed that no scientific literature was found to show that eating these foods has a negative impact on human health. " In the question and answer about genetically modified foods, the World Health Organization pointed out: "Genetically modified foods currently sold in the international market have passed the risk assessment and are unlikely to pose a risk to human health. Moreover, among the general population in the approved countries, it has not been found that eating these foods will affect human health. "
At present, the accusations and worries about genetically modified crops and genetically modified foods are actually social panic caused by the deliberate misleading of some extremist organizations and the lack of biological knowledge of the general public. There is not much scientific content in the debate around it, so it is hard to be called a scientific debate.
In fact, genetically modified foods that have been marketed are not only safe, but also often safer than similar non-genetically modified foods. Planting insect-resistant transgenic crops can reduce or eliminate pesticide pollution to food, and as we all know, high pesticide residue has always been a major problem in food safety. Disease-resistant transgenic crops can resist bacterial infection, thus reducing the content of bacterial toxins in food. Excessive use of chemical pesticides is the main factor that destroys the environment at present. Popularizing insect-resistant transgenic crops can greatly reduce or even avoid the use of chemical pesticides, which not only reduces the pollution of pesticides to the environment, but also reduces the raw materials, energy and waste discharged from pesticide production, transportation and spraying. On April 29th, 2005, Science magazine published the paper "The Impact of Transgenic Insect-resistant Rice on Rice Production and Farmers' Health in China", pointing out that the yield of transgenic insect-resistant rice increased by 6% compared with that of non-transgenic rice, and the application amount of pesticides decreased by 80%, which saved considerable expenses and reduced the adverse effects of pesticides on farmers' health. About 50,000 farmers are poisoned by pesticides every year in China, and about 500 of them die.
The article comes from the Science Park.
Question 5: What are the seeds of non-GM corn? 26 leading agricultural varieties in 20 1 1 year. 1. Huanghuaihai region (1) Zhengdan958: This variety is suitable for planting in Huanghuaihai summer maize region in China. Shanjun 20: It is suitable for planting in summer sowing areas in Henan, Shandong, south-central Hebei, Shaanxi, Anhui, Jiangsu, Yuncheng, Shanxi, and areas with active accumulated temperature ≥10℃ and above 3000℃ in Inner Mongolia. (3) Lu Dan 98 1: Suitable for summer planting in Yuncheng, Lu Yu. Jinhai 5: This variety is suitable for summer sowing in Yuncheng, Henan, Hebei, Shandong, Shaanxi, Jiangsu, Anhui, Shanxi and other places, and should be used with caution in areas with high incidence of leaf diseases and smut. (5) Single crystal 28: It is suitable for planting in Beijing-Tianjin area, Hebei summer corn planting area, areas with active accumulated temperature ≥ 10℃ and above 2750℃ in Inner Mongolia, and areas with the upper limit of the first accumulated temperature zone in Heilongjiang Province. (6) Zhongke 1 1: It is suitable for planting in summer maize areas in Hebei, Henan, Shandong, Shaanxi, northern Anhui, northern Jiangsu and Yuncheng, Shanxi. (7) Li Yu 16: It is suitable for planting in maize areas in Hebei, Shaanxi, Anhui, Henan and Beijing, middle-late maturing areas in Jilin and areas with active accumulated temperature ≥ 10℃ and above 3000℃. Shen Dan 16: Suitable for planting in spring sowing areas in Liaoning, Ningxia, Gansu, Xinjiang, western Inner Mongolia and summer sowing areas in Shaanxi, Hebei and Lu Yu. (9) SEAO 20: It is suitable for planting along the Yangtze River in Jiangsu and Huaihe River Basin in Jiangsu, Anhui and Anhui. (X) Jiyuan 1: It is suitable for popularization and utilization as a summer maize variety in Tianjin. 2. Southwest China (1) Chuandan 4 18: It is suitable for planting in Pingba hills and low mountainous areas in Sichuan, Chongqing, Guizhou, Hunan and Yunnan. (2) Dongdan 80: It is suitable for spring sowing in Liaoning, Jilin late-maturing area, Beijing, Tianjin, northern Hebei, Shanxi, Yunnan, Guizhou, Sichuan, Chongqing, Hunan, Hubei and Guangxi, and attention should be paid to the prevention and control of underground pests. (3) Li Yu 16: It is suitable for planting in maize areas in Hebei, Shaanxi, Anhui, Henan and Beijing, middle-late maturing areas in Jilin and areas with active accumulated temperature ≥ 10℃ and above 3000℃. (4) Zheng Da 6 19: Suitable for planting in the main corn producing areas in Guangxi. (5) Guidan No.8: It is suitable for planting in medium and high fertility soil in Guiyang, Anshun, Bijie, Liupanshui and southwest Guizhou. Use with caution in areas where head smut often occurs. (6) Denghai 1 1: It is suitable for planting in Hebei, Henan, Shandong, Shaanxi, northern Jiangsu, northern Anhui, Sichuan, Chongqing and other suitable areas, but it should be used with caution in the epidemic areas of dwarf mosaic and Curvularia leaf spot. (7) Cheng Dan 30: Suitable for planting in Pingba, hilly and mountainous areas of Sichuan, intercropping with wheat straw or pure farming. (8) Zhongdan 808: planted in the mountainous area around Sichuan Basin. 3. Northern Region (1) Zheng Dan 958: It is suitable for planting in Huanghuaihai, Beijing, Hebei, Inner Mongolia, Shaanxi, Liaoning, Jilin, Heilongjiang and Xinjiang summer corn areas. (2) Ji Dan 27: Suitable for planting in the east and west of Jilin Province and the upper limit of the second accumulated temperature zone in Heilongjiang Province. (3) Liao Dan 565: It is suitable for planting in Benyu No.9 planting area in Liaoning, Jilin, Heilongjiang, Tongliao, Inner Mongolia, and the areas determined by Jingtang, Hebei and Inner Mongolia. (4) Longdan 38: It is suitable for planting in the second accumulated temperature zone of Heilongjiang Province and related areas of Inner Mongolia. (5) Suiyu 10: Suitable for planting in the lower limit of the second accumulated temperature zone in Heilongjiang Province and related areas in Inner Mongolia. (6) Ken 3: It is suitable for planting Sidan 19 varieties in the mountainous area of eastern Liaoning, the middle-late maturing area of eastern Jilin, the upper limit of the first accumulated temperature zone of Heilongjiang and Chifeng area of Inner Mongolia. (7) Zhedan 37: It is suitable for planting in the third accumulated temperature zone of Heilongjiang Province. (8) Huanong 10 1: It is suitable for spring sowing and planting in northern Beijing-Tianjin-Hebei, middle and late-maturing areas in Shanxi, middle and late-maturing areas in Liaoning, late-maturing areas in Jilin, Chifeng area in Inner Mongolia and Yan 'an area in Shaanxi, and summer sowing and planting in Shandong, Henan (excluding Zhumadian), south-central Hebei, Guanzhong irrigation area in Shaanxi, northern Anhui and Yuncheng area in Shanxi.
Question 6: The difference between genetically modified corn and non-genetically modified corn Since I learned about Xianyu 335, I don't eat much corn products now, but there is still no way to avoid indirect intake. Corn is the basic crop, and it makes too much food! Wine, seasoning, starch ......
Question 7: Which is better, genetically modified corn or non-genetically modified corn, is to transfer other genes into ordinary corn to become genetically modified corn. It has different traits (traits controlled by genes) from ordinary corn.
Question 8: How to distinguish between genetically modified king and non-genetically modified corn? And food packaging is required to be marked with genetically modified words.
If you import genetically modified corn, you can't see it from the appearance.
We can only take it to the laboratory and test it by molecular biology.
Question 9: How to distinguish genetically modified corn from non-genetically modified corn? We can't clearly distinguish genetically modified corn from non-genetically modified corn by appearance.
Shit! ! !
Therefore, the Ministry of Agriculture stopped more than 20 corn varieties this year, which are not genetically modified varieties recognized by the Ministry of Agriculture, but they are genetically modified varieties in the public documents of the US Patent Office! !
Question 10: What are the characteristics of transgenic corn? I haven't eaten much corn products since I learned about Xianyu 335, but there is still no way to avoid indirect intake. Corn is the basic crop, and it makes too much food! Wine, seasoning, starch ......
Sweet corn may not be genetically modified, but it may be genetically modified.
To be on the safe side, eat organic corn or not.
I don't know if those cotton bollworms in the video seem to be cotton poisonous corn.
In order to avoid genetic modification, we should also eat less fish, meat and processed food. Those additives and hormone feeds are unsafe.
The following is transferred from Greenpeace:
"Many consumers always have doubts about which foods may contain genetically modified ingredients. Because it is widely planted in the world at present, it mainly
Genetically modified food crops, including genetically modified soybeans, genetically modified corn and genetically modified rapeseed. And soybeans, corn and their derivatives (e.g.
Soybean phospholipid, soybean protein, corn starch, etc. ) is most often used as food raw materials and additives, and may also be added to daily life.
In biscuits, instant noodles and even baby milk powder, foods containing genetically modified ingredients are everywhere. "
Transgenic corn is a kind of corn with stable genetic traits that people pursue by introducing the genes of distant and useful plants into the corn genetic material that needs to be improved by using modern molecular biotechnology. Transgenic technology is the core technology to produce transgenic corn. It uses DNA recombination technology to transfer foreign genes into recipient organisms, making them undergo directional and stable genetic changes, even if new recipient organisms acquire new traits.
Since the advent of transgenic corn, although some of its improved characters can meet people's requirements, its safety is still controversial. Scientists and countries also hold different attitudes towards genetically modified corn. [ 1]
By the end of 65438+February, 19, inspection and quarantine institutions in Shenzhen, Fujian, Shandong, Guangdong, Zhejiang, Xiamen and other ports have successively detected MIR 162 transgenic components from 12 batches of 545,000 tons of American corn exported to China. Inspection and quarantine institutions at various ports have returned 545,000 tons of corn imported from the United States 12 batches to China according to law.