首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Well, he made it up. All of it, apparently. According to a report published on December 29th by Seoul National University in Sou
Well, he made it up. All of it, apparently. According to a report published on December 29th by Seoul National University in Sou
admin
2011-03-22
55
问题
Well, he made it up. All of it, apparently. According to a report published on December 29th by Seoul National University in South Korea, its erstwhile employee Hwang Woo-suk, who had tendered his resignation six days earlier, deliberately falsified his data in the paper on human embryonic stem cells that he and 24 colleagues published in Science in May 2005.
In particular, Dr Hwang claimed he had created 11 colonies of human embryonic stem ceils genetically matched to specific patients. He had already admitted that nine of these were bogus, but had said that this was the result of an honest mistake, and that the other two were still the real McCoy. A panel of experts appointed by the university to investigate the matter, however, disagreed. They found that DNA fingerprint traces conducted on the stem-cell lines reported in the paper had been manipulated to make it seem as if all 11 lines were tailored to specific patients. In fact, none of them matched the volunteers with spinal-cord injuries and diabetes who had donated skin cells for the work. To obtain his promising "results", Dr Hwang had sent for testing two samples from each donor, rather than a sample from the donor and a sample of the cells into which the donor’s DNA had supposedly been transplanted.
The panel also found that a second claim in the paper — that only 185 eggs were used to create the 11 stem cell lines — was false. The investigators said the actual number of eggs used was far larger, in the thousands, although they were unable to determine an exact figure. The reason this double fraud is such a blow is that human embryonic stem-cell research has great expectations. Stem cells, which have not yet been programmed to specialise and can thus, in principle, grow into any tissue or organ, could be used to treat illnesses ranging from diabetes to Parkinson’s disease. They might even be able to fix spinal-cord injuries. And stem cells cloned from a patient would not be rejected as foreign by his immune system.
Dr Hwang’s reputation, of course, is in tatters. The university is now investigating two other groundbreaking experiments he claims to have conducted — the creation of the world’s first cloned human embryo and the extraction of stem cells from it, and the creation of the world’s first cloned dog. He is also in trouble for breaching ethical guidelines by using eggs donated by members of his research team.
And it is even possible that the whole farce may have been for nothing. Cloned embryos might be the ideal source of stem cells intended to treat disease, but if it proves too difficult to create them, a rough-and-ready alternative may suffice.
The significance of embryonic stem-cell research lies in ______.
选项
A、great expectations
B、planting into any tissue or organ
C、the treatment of a lot of human diseases
D、curing diabetes and Parkinson’s disease
答案
C
解析
本题为细节题。参见文章第3段第4句:Stem cells, .. grow into any tissue or organ, could be used to treat illnesses ranging from diabetes to Parkinson’s disease. 由此可知干细胞可用于治疗大量的人类疾病。选项A太空泛;选项B不是重要意义;选项D不全面,所以选项C为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/eFxd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
WhatisthepopulationofSydneyaccordingtothepassage?
Themainproblempeoplemayencountertodayarisesfromthefactthat______.
Predictionsofmanyrobotsinindustryhaveyetcometrue.Fortenyearsormore,manufacturersofbigrobotshaveexplainedhow
Themorewomenandminoritiesmaketheirwayintotheranksofmanagement,themoretheyseemtowanttotalkaboutthingsforme
Whenitcomestogenderrolesinfamilies,itseemsthemorethingschange,themoretheystaythesame.Forthefirsttime,the
Whenitcomestogenderrolesinfamilies,itseemsthemorethingschange,themoretheystaythesame.Forthefirsttime,the
ThedivorcerateinAmericahasreached______.
IfyouplantoflyoffonyourholidaysthisChristmasorNewYear,relax.Forgetthefactthatairlinercrasheshavekilledm
BoeingCo’sSonicCruiser,aproposedfasterairliner,wouldbemostlyblendedmaterial,programdirectorWaltGillettesaidrec
BoeingCo’sSonicCruiser,aproposedfasterairliner,wouldbemostlyblendedmaterial,programdirectorWaltGillettesaidrec
随机试题
在考生文件夹下有一个数据库文件“samp3.accdb”,里面已经设计好表对象“tBorrow”、“tReader”和“tRook”,查询对象“qT”,窗体对象“fReader”,报表对象“rReader”和宏对象“rpt”。请在此基础上按以下要求补充设
干性咳嗽常见于下列疾病
上尿路结石最常见的类型是
A.磺胺嘧啶B.乙醇C.硼酸D.苯甲酸E.异烟肼可发生重氮化-偶合反应的是
某患者,40岁,右下1缺失,余牙及口颌情况正常,欲以双端金属烤瓷全冠桥修复,其下前牙基牙切端应预备出的间隙至少为
A.管间侧支B.根管侧支C.根尖分歧D.根尖分叉E.侧孔发自根管的细小分支,与根管成垂直角度,贯穿牙本质和牙骨质通向牙周膜的结、构称为
某盐渍土地区公路工程,其盐渍土的分级溶陷量△=30cm,其溶陷等级为()。
某煤矿为增值税一般纳税人,2017年3月发生下列业务:(1)开采原煤40000吨;(2)采取托收承付方式销售原煤480吨,每吨不含税售价为150元,货款已经收讫;(3)销售未税原煤加工的选煤60吨,每吨不含税售价300元(含
下列有关审计报告日的说法中,错误的是()。
Wemustfindawaytocutprices______reducingourprofitstoomuch.
最新回复
(
0
)