GM-food

赞成。首先，我们得了解什么是转基因？转基因通俗而言就是通过生物学手段向生物体内转入同一物种或不同物种的其他基因，以此达到人们预期的目标。因此，这些基因都是自然存在的，而不是人为创造的。所以我们相信，由这些基因表达的产物是对人类无害的。其次，科学家所选择的基因都是人类所需要的。华中农业大学张启发院士改良的“黄金大米”显著提高了大米中胡萝卜素的含量。这对于维生素A的摄取大有裨益。于发展中国家而言，这是可以挽救数百万儿童生命的研究成果。最后，转基因食物相比于传统食物营养物质在某些营养品质上更具有优势，这对于缓解目前全球范围内的粮食危机无疑是一个很好的解决方案。说起转基因食物，最终都会说到转基因安全性问题。说转基因不安全的，其实都是不懂生物之流，譬如崔永元等。完全不懂生物还在大谈转基因，学生物的只把他当做一个笑话。就算转基因存在未知的安全问题，也不是崔某如此连基因定义都不懂的媒体人所能评论的。我看来，转移基因食品，只要是经过预实验（有专门的指标）和理论验证没有问题的都是可以放心吃的。比如，现在的转BT-毒蛋白的大米，有人一听说“毒蛋白”，并且虫子吃了就死，人吃了还不死？然而并不是这样。你可以说，一滴水可以淹死一只蚂蚁，但是一滴水可以淹死一个人么？答案显然是否定的。BT-毒蛋白对于昆虫和人的作用机理是完全不一样的。就目前实验和理论而言，BT-毒蛋白对人是没有害处的。而且，生物是科学，科学是严谨的，所以，就目前掌握的证据而言，我相信它是安全的。转基因食物会危害到人类，这纯属小概率事件或者说几乎不可能事件。其实，转基因食品安全问题主要不在食品之上，而在于转基因作物被培养的环境是否安全。比如土壤微生物的变化，田间各个物种的分布，数量变化，以及与之相关的生物的变化。这种变化短期是无法体现的，需要几十年，甚至几百年的监控。所以，我相信科学，也相信科学家，我支持转基因食物。

I agree genetically modified food.

First of all, we need to know what is genetically modified food? Generally speaking, the technology of GM is putting other genes from the same species or different species into new organisms through biological methods to achieve the expected goal. Apparently, genes are naturally existing, rather than artificially created. So I believe that it is harmless to humans.

Next, the genes by scientists selected are what humans need. For example, the Mr Zhang of Huazhong agricultural university significantly increased the content of carotene in the improved \"golden rice\". It positively contribute to the intake of vitamin A. In developing countries, it is a research that can save millions of children’s lives.

Finally, genetically modified foods have more advantages compared with traditional food. It contains more nutritional quality and grows faster. Undoubtedly, it is a good solution to ease the global food crisis.

Speaking of GM-foods, what we concern most is the transgenic security problems. It is ignorant to say GM-food unsafe. Some people don't even understand the essence of genetic definition. It is safe to eat as long as it get through preliminary experiments which have special indexes and theoretical tests, I ague. For example, BT - toxic proteins of rice is a kind of transgenic crop. Some people consider it toxic when they hear \"toxic protein\". In fact, it’s toxic to the worms but nontoxic to people. Likely, a drop of water can drown an ant, but can a drop of water drown a man? The answer is clearly no. The action of BT - toxic proteins is not the same on insects and mechanisms. In terms of current experiments and theories, the BT - toxic protein is no harm to people. Biology is a subject of science and science is rigorous. Therefore, it is almost impossible or a small probability events

that GM-foods can harm humans.

In fact, the safety of genetically modified food mainly depend on whether the cultivation environment was safe. There exist so many unobservable factors. Such as the change of soil microorganism, the field distribution of each species, as well as the related biological changes. These changes will appear in the short term. It takes decades, or even hundreds of years of monitoring. It deserves more attentions and supports but not oppositions.

I believe science and I support GM-foods. One day, it will dominate the earth.