sábado, 25 de mayo de 2013


MAD SCIENCE?¿

Vaccines within a banana? It may sound as science fiction. Eggs which help to cure cancer? It's been done. Evgen plants that reduce the amount of air pollution have been invented.
These new genetically modified organisms exist thanks to an alternation in the DNA when being combined with another one. Many of these could bring important advanteges in our every-deay life. Here I show you some of the weirdest outcomes of genetic enginnering.

Pollution fighting plants:

Scientists at the University of Washington areengineering poplar trees taht can clean up contamination sites by absorbing groundwater pollutants through their roots. The plants then break the pollutants down into harmless byproducts that are incorporated into their roots, stems and leaves or released into the air.

In laboratory tests, the transgenic plants are able to remove as much as 91 percent of trichloroethylene — the most common groundwater contaminant at U.S. Superfund sites — out of a liquid solution. Regular poplar plants removed just 3 percent of the contaminant.


Web-spinning goats:
Strong, flexible spider silk is one of the most valuable materials in nature, and it could be used to make an array of products — from artificial ligaments to parachute cords — if we could just produce it on a commercial scale. In 2000, Nexia Biotechnologies announced it had the answer: a goat that produced spiders’ web protein in its milk.
Researchers inserted a spiders’ dragline silk gene into the goats’ DNA in such a way that the goats would make the silk protein only in their milk. This “silk milk” could then be used to manufacture a web-like material called Biosteel.

Banana vaccines:
People may soon be getting vaccinated for diseases like hepatitis B and cholera by simply taking a bite of banana. Researchers have successfully engineered bananas, potatoes, lettuce, carrots and tobacco to produce vaccines, but they say bananas are the ideal production and delivery vehicle.

When an altered form of a virus is injected into a banana sapling, the virus’ genetic material quickly becomes a permanent part of the plant’s cells. As the plant grows, its cells produce the virus proteins — but not the infectious part of the virus. When people eat a bite of a genetically engineered banana, which is full of virus proteins, their immune systems build up antibodies to fight the disease — just like a traditional vaccine.




Medical eggs:


British scientists have created a breed of genetically modified hens that produce cancer-fighting medicines in their eggs. The animals have had human genes added to their DNA so that human proteins are secreted into the whites of their eggs, along with complex medicinal proteins similar to drugs used to treat skin cancer and other diseases.

What exactly do these disease-fighting eggs contain? The hens lay eggs that have miR24, a molecule with potential for treating malignant melanoma and arthritis, and human interferon b-1a, an antiviral drug that resembles      modern treatments for multiple sclerosis.





All this breakthroughs in bioenginnering may sound incredibly delightful, however there are some risks that could be followed by an unexpected realise into society. Have you thought about this before???



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