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
The ethnic group known as Ashkenazim is blessed with more than its fair share of talented minds, but is also prone to a number o
The ethnic group known as Ashkenazim is blessed with more than its fair share of talented minds, but is also prone to a number o
admin
2015-04-24
37
问题
The ethnic group known as Ashkenazim is blessed with more than its fair share of talented minds, but is also prone to a number of serious genetic diseases. Researchers now suggest that intelligence is closely linked to several illnesses in Ashkenazim Jews, and that the diseases are the result of natural selection.
The Ashkenazim are descended from Jewish communities in Germany, Austria, Poland, and Eastern Europe that date back to the 10th century. Today they make up approximately 80 percent of the world’s Jewish population.
Ashkenazim have the highest average IQ of any ethnic group, scoring 12 to 15 points above the European average. They are also strongly represented in fields and occupations requiring high cognitive ability. For instance, Jews of European ancestry account for 27 percent of U. S. Nobel science prize winners.
But the group is also associated with several neurological disorders, including Tay-Sachs, Gaucher’s, and Niemann-Pick. Tay-Sachs is a fatal hereditary disease of the central nervous system. Sufferers lack an enzyme needed to break down fatty substances in the brain and nerve cells. Gauchers and Niemann-Pick are similar, often fatal diseases.
Because Jews were discriminated against in medieval Europe, they were often driven into professions such as money lending and banking which were looked down upon or forbidden for Christians.
Historians suggest that Jews with lucrative jobs often had four, six, or sometimes even eight or nine children. Poorer families, meanwhile, tended to be smaller, possibly because they lived in over hundreds areas in which children were more prone to disease. As a result, the researchers say, over hundreds of years the Jewish population of Europe became more intelligent than their gentile countrymen.
But increased intelligence may have come at a cost, with genetic diseases such as Tay-Sachs.
Being side effects of genes that facilitate intelligence, researchers argue that highly unlikely that mutated genes responsible for these illnesses could have reached such high levels in Ashkenazim if they were not connected to cognitive performance.
While the link is difficult to prove, there is some evidence that Gaucher disease does increase a person’s IQ. Around one in three people of working age who were patients of the Gaucher Clinic at the Shaare Zedek Medical Centre in Jerusalem had professions requiring an average IQ of more than 120. This group included scientists, academics, physicians, and accountants.
Modern-day Ashkenazim are now far more likely to marry outside their ethnic group. A researcher says that he would expect a tendency for both higher IQs and associated genetic disorders to become less marked over time.
The "lucrative job" may most probably be a job which is______.
选项
A、profitable
B、unsteady
C、challenging
D、permanent
答案
A
解析
细节推断题。根据题干信息定位到原文第六段的首句。紧接着的第二句就是“同时,Poorerfamilies则要小一些……”。两句是相对照的关系。也就是说,lucrative一词与poorer大体上应该是相反的意思。故答案为A(有利可图的)。
转载请注明原文地址:https://kaotiyun.com/show/uNLO777K
0
考博英语
相关试题推荐
Everychemicalchangeeitherresultsfromenergybeingusedtoproducethechange,orcausesenergytobe______insomeform.
ThecreationofUNwas,perhaps,themost______achievementofthe20thcentury.
Theyarebothverydeterminedpeople,sothere’srathera______ofpersonalities.
Apreviouslyunknowndisease,SARShasenteredourdailyvocabulary.Nowweliveinits【1】WhileSARS【2】centerstage,anancient
Cultureshockmightbecalledan【1】diseaseofpeoplewhohavebeensuddenly【2】abroad.Likemostailments,ithasitsown【3】andc
ForgetwhatVirginiaWoolfsaidaboutwhatawriterneeds——aroomofone’sown.Thewritershehasinmindwasn’tatworkonan
Seariseasaconsequenceofglobalwarmingwouldimmediatelythreatenthatlargefractionoftheglobelivingatsealevel.Nea
Researchiscommonlydividedinto"applied"and"pure".Thisclassificationisarbitraryandloose,butwhatisusuallymeantis
Itisnotunusualforchiefexecutivestocollectmillionsofdollarsayearinpay,stockoptions,andbonuses.Inthelastfif
Today,theTowerofLondonisoneofthemostpopulartourist【C1】______andattractsoverthreemillionvisitorsayear.Itw
随机试题
外用有清热收湿作用,可用治湿疮、湿疹、痱子等皮肤病的药物是()
姚女士,41岁,腹部外伤后×线检查示左膈下游离气体,考虑为()。
关于法律职业,下列哪些选项的表述可以成立?()
有关对二氧化碳灭火系统的特点及使用范围的叙述中,说法不正确的是()。
伤亡事故预防,就是要做好(),消除人和物的不安全因素,实现作业行为和作业条件安全化。
某单线铁路隧道要求工期36个月,全长7.5km,只有进出口有进洞条件,隧道中间高洞口低,出口洞口段有20m长的坡积层,厚度较厚;进口段为风化岩有部分节理判定为Ⅲ级围岩,进洞施工时为旱季。进口段有一段60m富水断层破碎带。出口段有一段石灰岩地质,可
京菜和沪菜属于四大菜系。()
按中国常模结果,SDS标准分的分界值为()。
自从新文学运动以来,散文一直是文坛的主力,虽然不如诗与小说那么勇于实验而变化多端,却也不像这两种文体那么历经欧美风雨而迷惑于各种主义、各种门派。这段文字的主要意思是()。
打开工作簿文件EXC.XLSX,对工作表“‘计算机动画技术’成绩单”内数据清单的内容进行筛选。条件是:实验成绩15分及以上,总成绩在80分到100分之间(含80分和100分)的数据,工作表名不变,保存EXC.XLSX工作簿。
最新回复
(
0
)