转基因就是将人工分离和修饰过的基因导入到目的生物体的基因组中，从而达到改造生物的目的。常用的方法包括顯微注射、基因槍、電破法、脂質體等。
转基因最初用于研究基因的功能，即把外源基因导入受体生物体基因组内（一般为模式生物，如拟南芥或斑马鱼等），观察生物体表现出的性状，达到揭示基因功能的目的。后来人们造出基因改造食品，因其安全性未确定，尚有争议。
以上介绍来自百科，可见转基因的结果是改良和产生新物种，同物种灭绝一样，产生新物种本身无可厚非。
而对于转基因食品，争论的核心就是安全性。就是要检验它是否有毒害，或者更深远的对人体基因的影响。
过去理论认为食物一般不会通过消化过程对人体基因产生影响，在现在的技术条件下看来，已经不那么确定了。
如果确定了转基因食品安全性，我不反对转基因食品。
Genetically modified food
From Wikipedia, the free encyclopedia
(Redirected from
GM food)
Genetically modified foods are foods produced from
organisms that have had specific changes introduced into their
DNA using the methods of
genetic engineering. These techniques have allowed for the introduction of new crop traits as well as a far greater control over a food's genetic structure than previously afforded by methods such as
selective breeding and
mutation breeding.
[1]
Commercial sale of genetically modified foods began in 1994, when
Calgene first marketed its
Flavr Savr delayed ripening tomato.
[2] To date most genetic modification of foods have primarily focused on
cash crops in high demand by farmers such as
soybean,
corn,
canola, and
cotton seed oil. These have been engineered for resistance to pathogens and herbicides and better nutrient profiles. GM livestock have also been experimentally developed, although as of September 2013 none are currently on the market.
[3]
There is broad scientific consensus that food on the market derived from GM crops poses no greater risk to human health than conventional food.[4][5][6][7][8][9] However many analysts have objected to GM foods on several grounds, including public health issues,
[7] ecological concerns, and
economic concerns raised by the fact that GM plants (and potentially animals) that are food sources are subject to
intellectual property law.
科学界广泛的共识是，市场上的转基因粮食并不比传统粮食对人类的健康更具危险性。但是，很多分析者出于各种原因反对转基因食品，其原因包括公共健康问题、对生态的担心、以及因为作为食物来源的转基因植物（也可能包括动物）是要受知识产权保护的事实而引起的经济问题。
