Unreliable genetic rumors: Soybeans do not germinate
GM is a hot topic nowadays, and rumors about genetic modification are spread like viruses in various forums, spaces, and circle of friends. In fact, rumours that such things have been self-cleaning since the ancient times, will slowly fade. But now it seems that the rumors have intensified. Recently, there are several posts on how to identify genetically modified genes. The rumor level is not high, and it is necessary to give everyone a reminder.
GM is good or bad. We will not discuss it here. We will only look at the so-called methods for identifying GM foods. I'm afraid I have to say—Is this rumors still rougher?
1. Soybean
According to the introduction: GM soybeans do not germinate, so they can be tested with water. Non-transgenic soybeans will germinate in water for three days, while transgenic soybeans will not germinate and will only swell. It is said that this is because the germ of the genetically modified soybean does not have the vitality of life and therefore does not have the ability to continue offspring. It is inferred that if humans use a variety of genetically modified foods on a large scale for a long period of time, the genetically modified fragments that endanger humans will inevitably affect people's normal genes in a subtle manner, weaken their resistance, cause diseases, or lose fertility.
Believe me, whether it's the maker of the rumor or the person who believes in this rumor, your biology teacher will surely appear in front of you and let you finely copy the biology textbooks a thousand times or a thousand times... If the genetically modified soybean cannot germinate, Then where do the seeds of the 100 million hectares of genetically modified soybeans grown in the world come from every year? Is it a bit of common sense? Don't say that the seeds of non-GM soybeans are used to transfer genes one by one. If you can convert the genetically modified soybean seeds that can be used all over the world each year, first, congratulations on your use of this technology to get Ph.D. Second, because of the high cost, the failure to sell is a must. Therefore, it is imperative that we do not make fabricated rumors. Instead, we should reserve a place on the flyover, quickly, and lately.
However, the notion that the so-called “offspring seeds†cannot germinate does not come from a shadow. It stems from attempts made by some agricultural science and technology companies abroad in the past century to obtain lethal genes by screening artificially created mutant libraries and kill them. Genes are used to control the development of crop seeds so as to prevent farmers from planting seeds. Later it was stopped for various reasons. This is not the same thing as the above-mentioned "genetically modified soybean infertility." The current genetically modified soybeans are mainly herbicide-tolerant soybeans. The soybeans can be cultivated for cost savings and high oil yields.
Transgenic plants do not directly transfer foreign genes to plant seeds. Instead, they use a series of techniques to transfer the foreign genes into the calli of the target plant, and then obtain complete plants through tissue culture. Due to the uncertainty of gene insertion sites, the agronomic traits of the transgenic plants may be altered, resulting in no use value in production. Therefore, it is necessary to screen further transformed seeds with valuable breeding seeds from the many transformed plants, and finally be promoted in production. Although the story is very simple, but from the time of conversion to the ultimate use of the seeds, the process is ten years, and the cost is very high. The cost of obtaining a genetically modified soybean seed is enough to buy an acre of soybeans. . So pro, flyover to find it?
It is also worth mentioning that the current mature and reliable method for detecting transgenes is useful for test strips and is detected by PCR. The current standard method is realtime-PCR. But no matter which method, the cost of each sample is at least ten yuan. If GM soybeans can be detected through blisters, do you think that the balance of intelligence on such a large biologist is insufficient?
2. Carrot
It is said that the surface of transgenic carrots is relatively smooth and is generally straight. Sometimes the tail is thicker than the middle and the head is concave. Note: Carrots are only available in autumn and winter seasons, and summers are generally genetically modified.
I am not talking about it. There are currently no genetically modified carrots on the market. Even if you spend more money, you can't buy it. Note: The off-season vegetables are generally grown in greenhouses or in places with special climatic conditions - such as mountains, which are not related to genetically modified half-money.
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