Автор: Пользователь скрыл имя, 14 Января 2011 в 21:49, сочинение
11 тем.
ТЕМА
№13 GENETICALLY MODIFIED FOODS: CURSE, BLESSING OR OTHER
Nowadays most
people eat genetically modified foods. But many of us do not know whether
these foods are safe or dangerous for our health.
Genetically
modified (GM) foods are food items that have had their DNA changed through
genetic engineering.
For example: for the tomatoes and strawberry were more frost-resisting, they put into them the genes of northern fishes; for the wreckers didn't eat the corn, they can put a very active gene received from a poison of the snake.
I'll enumerate some: soybean, corn, canola, and cotton seed oil.
Genetically
modified product can be meat. For example: The cattle get growth hormone.
The generically
modified plants have pluses. The chemicals in them collects less, than
in their natural analogues. For example, chemicals in them collects
less, than in their natural analogues. Some destroy by themselves
herbicide with the help of containing special ferment.
Genetically modified foods are risky for the environment too. The ability of these types of crops plant to resist weeds, even fight back pests affect other organism of the environment.
There are violations of natural food chains can be in environment.
For last ten
years of the generically modified products manufacture has got huge
scales, especially in USA
In Russia to grow these product is forbidden, but I think we get any way from other countries.