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For all the fevered work being done,however,science is still far away from the Brave New World vision of engineering a perfect h
For all the fevered work being done,however,science is still far away from the Brave New World vision of engineering a perfect h
admin
2012-05-18
91
问题
For all the fevered work being done,however,science is still far away from the Brave New World vision of engineering a perfect human or even a perfect tomato. Much more research is needed before gone therapy becomes commonplace and many diseases will take decades to conquer,If theycan be conquered at all.
In the short run,the most practical way to use the new technology will be in genetic screening. Doctors will be able to detect all sorts of flaws in DNA long before they ban be fixed. In some cases the knowledge may lead to treatments that delay the onset of trie disease or soften its effects. Someone with a genetic predisposition to heart disease,for example,could follow a low-fat diet. And if scientists determine that a vital protein is missing because the gone that was supposed to make it is defective,they might be able to give the patient an artificial version of the protein; But in other instances, almost nothing can be d one to stop the ravages brought on by genetic mutations.
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答案
但是,对于所有正在进行的激动人心的工作而言,科学远没有达到一个能塑造完美人类的美好新世界景象——或者甚至于说是塑造一个美好的番茄。在基因治疗普及之前,仍然需要做大量研究。如果许多疾病真的可以治疗的话,那将花上数十年的时间。 就短期而言,遗传筛选将是运用新技术的最可行的办法。在治疗各种DNA缺陷之前,医生能够检测到它们。在某些情况下,这些信息可以延缓疾病的发作或是减轻它的作用效果。譬如,一个有着易患遗传性心脏病体质的人可以进行低脂肪的饮食。如果科学家测出由于制造一种重要蛋白质的基因存在缺陷,从而导致这种蛋白质丢失的话,也许科学家就可以给这位病人提供人工蛋白质。然而,在其他的情况下,对于阻止由于基因突变而导致的不幸几乎无能为力。
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考博英语
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