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Genetic Engineering: Forward Or Backward ?
On question that is debated these days is whether or not genetic engineering is a good thing . We're hearing this term ''genetic engineering '' with increasing frequency these days . For those readers who may not be sure of its meaning, some definitions follow . When we speak of genes, we are referring to chemical substances in the cell of living thingthat establish an organism's characteristics .genetic engineering is the changing of certain genes, usually to improve an organism in some ways . In recent years, for example, certain genes have been placed in tomato plants to make tomatoes taste better and keep them fresh in supermarkets for a longer time .Cows have been treated with a growth hormone that make dairy cattle give more milk andreduces the amount of fat in the meat of beef cattle. These sound like positive thing, don't they? After all, many people say, the technology exists to improve our lives. Why shouldn't this technology be used? There are plenty of people around who oppose genetic engineering. Why? Two specific objections come to mind.One is that the balance of nature might be upset. suppose, for example, thatscientists are able to genetically engineer certain plants so that insects will not eat them . This will protect the plants, but the insects will be deprived of a food supply- and other animals that depend on those insects for food will lose their food supply, too. A second objection is a moral question. Is it acceptable or right for us to change the makeup of living things? Supporters of geneticengineering say the benefits outweigh the dangers. Look at all the improvements that can be made in plants raised for food, they say. Because of genetic engineering, plants can be grown that produce more fruits and vegetables and resist disease. In a world where more and more food will be needed in the future, this is a benefit. The medical advances provided by genetic engineering, say the supporters,are even more impressive. Consider cancer , for example. If genetic engineering can provide a way to cure or prevent this disease,shouldn't it be used? And if genetic engineering can be used to kill the virus causes AIDS, shouldn't it be permitted ? Opponents of genetic engineering say it should be stopped, or at least limited . Proponents of genetic engineering say it should be promoted andexpanded.NOW Tell us what ever goes in your mind as we know we have the technology to create identical version of all kinds of plants and animals - maybe even people ! How do you feel about this? Are you for cloning or against it? PLEASE SHARE ALL YOUR INFORMATION WITH US

Engenharia genética: avanço ou retrocesso?
Na questão que é debatida nos dias de hoje se é ou não a engenharia genética é umacoisa boa. Estamos ouvindo isto'' termo engenharia genética'' com freqüência cada vez maior nos dias de hoje. Para os leitores que não pode ter a certeza do seu significado, algumas definições a seguir. Quando falamos de genes, estamos nos referindo a substâncias químicas na célula de viver coisa que estabelecer as características de um organismo. Engenharia genética é a mudança de certos genes,geralmente para melhorar um organismo em alguns aspectos. Em anos recentes, por exemplo, certos genes foram colocadas em plantas de tomateiro para fazer tomates sabor melhor e mantê-los frescos em supermercados, por um tempo mais longo. Vacas foram tratados com uma hormona de crescimento que fazem o gado leiteiro dar mais leite e reduz a quantidade de gordura na carne de bovinos de corte. Estessoam como coisa positiva, não é? Afinal, muitas pessoas dizem, a tecnologia existe para melhorar nossas vidas. Por que não deveria esta tecnologia ser usada? Há uma abundância de pessoas ao redor que se opõem à engenharia genética. Por quê? Duas objeções específicas vêm a mind.One é que o equilíbrio da natureza pode ser perturbado. supor, por exemplo, que os cientistas são capazes de modificar...
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