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
IQ-gene In the angry debate over how much of IQ comes from the genes that children inherit from parents and how much comes fr
IQ-gene In the angry debate over how much of IQ comes from the genes that children inherit from parents and how much comes fr
admin
2009-06-15
18
问题
IQ-gene
In the angry debate over how much of IQ comes from the genes that children inherit from parents and how much comes from experiences, one little fact gets overlooked: no one has identified any genes (other than those that cause retardation) that affect intelligence. So researchers led by Robert Plomin of London’s Institute of Psychiatry decided to look for some. They figured that if you want to find a "smart gene" you should look in smart kids. They therefore examined the DNA of students like those who are so bright that they take college entrance exams four years early — and still score at Princeton—caliber levels. The scientists found what they sought. "We have," says Plomin, "the first specific gene ever associated with general intelligence."
Plomin’s colleagues drew blood from two groups of 51 children each, all 6 to 15 years old and living in six counties around Cleveland. In one group, the average IQ is 103. All the children are white. Isolating the blood cells, the researchers then examined each child’s chromosome 6 of the 37
landmarks on chromosome 6 that the researchers looked for, one jumped out: a form of gene called IGF2R occurred in twice as many children in the high-IQ group as in the average group — 32 percent versus 16 percent. The study, in the May issue of the journal Psychological Science, concludes that it is this form of the IGF2R gene that contributes to intelligence. Some geneticists see major problems with the IQ-gene study. One is the possibility that Plomin’s group fell for "chopsticks fallacy". Geneticists might think they’ve found a gene for chopsticks flexibility. But all they’ve really found is a gene more common m Asians than, say, Africans. Similarly, Plomin’s IQ gene might simply be one that is more common in groups mat emphasize academic achievement." What is the gene that they’ve found reflects ethnicity?" asks geneticist Andrew Feinberg of Johns Hopkins University. "That alone might explain the link to intelligence, since IQ tests are known for being culturally sensitive and affected by a child’s environment." And Neil Risch of Stand ford University points out that if you look for 37 genes on a chromosome, as the researchers did, and find that one is more common in smarter kids, that might reflect pure chance rather than a causal link between the gene and Intelligence. Warns Feinberg, "I would take these findings with a whole box of salt."
选项
A、how much of IQ comes from intelligence
B、how many children inherit genes from parents
C、how much of IQ comes from genes
D、how many children learn by experience
答案
C
解析
利用题干中的核心词scientist作为答案线索,同时注意到备选项中A和C提到了IQ, B和D提到了children,这样发现了答案相关句:In the angry debates(与题干中的“不能认同’呼应)over experiences,one little fact gets overlooked:no one has identified any genes(other than those that cause retardation)that affect intenigence.划线结构说“对有多少IQ来自遗传基因,有多少来自经验”有很多激烈的争论。因此判断C是正确答案。
转载请注明原文地址:https://kaotiyun.com/show/CJLd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
EverycountryrepresentedintheOlympicshasaNationalOlympicCommitteethatselectstheathleteswhocompeteinthegames.
WhichofthefollowingisNOTtrueofwhatismentionedaboutthewingedrobotinthesecondparagraph?Whichofthefollowing
ALEDLightingIsNotMatureBLEDLightingWillReplaceTraditionalLightingCAlmostEverythingCouldBetheMainLight
TherewerenohumanbeingsontheearthduringtheIceAge.ThetitlecanbereplacedbyTheGlacialEpoch.
Whereisthenapkinnormallyplacedduringthemeal?Allofthefollowingarefingerfoodsexcept
ComputerMouseThebasiccomputermouseis【C1】______amazinglycleverinventionwitharelativelysimpledesignthatallowsu
TheindustrialrevolutionmodifiedthewholestructureofEnglishsociety.
VoltsfromtheSkyLightninghascausedaweandwondersinceoldtimes.AlthoughBenjaminFranklindemonstratedlightningasan
A.electromagneticenergyB.electromagneticenergytravelsthroughspaceC.camefromthesunD.whenachangeinthenucleuso
Ourlivesareintimatelyboundupwiththeirs.
随机试题
肺痈溃脓期的最佳治法是
关于小儿遗尿的描述哪项是不正确的:
三仁汤中的"三仁"是
下列投资控制采取的措施有误的一项是()。
背景材料:某公路工程施工总承包二级企业承包了单跨跨度为120m的桥梁工程项目,桥梁上部结构施工中出现垮塌事故。监理工程师立即报告建设单位,施工单位着手事故处理。问题:该质量事故由谁负责报告?
对人的不安全行为可从( )方面着手解决。
编写审计报告、发表审计意见或作出审计决定的依据是()。
关于录用决策,下列理解错误的是()。(2003年11月二级真题)
社会自我基本成熟的时期是()
下面对对象概念描述错误的是
最新回复
(
0
)