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
Look at the ten statements for this part. You will hear a passage about "The Number of Genes ". You will listen to it twice.
Look at the ten statements for this part. You will hear a passage about "The Number of Genes ". You will listen to it twice.
admin
2018-11-04
57
问题
Look at the ten statements for this part.
You will hear a passage about "The Number of Genes ". You will listen to it twice.
Decide whether you think each statement is right(R), wrong(W)or not mentioned(NM).
Mark your answers on the Answer Sheet.
Scientists say they only found the list of the genes that control human biology.
Look at the ten statements for this part.
You will hear a passage about "The Number of Genes ". You will listen to it twice.
Decide whether you think each statement is right(R), wrong(W)or not mentioned(NM).
Mark your answers on the Answer Sheet.
Number of Human Genes Questioned
Scientists are questioning a widely reported finding from the first detailed study of the human gene map. The scientists dispute the findings that humans have only about thirty thousand genes. The new report suggests the true number could be much greater. Some believe that humans have more than one hundred thousand genes.
The issue seemed to be settled last February. That is when two competing teams of scientists published their efforts to map the position of every human gene. A private American company called Celera Genomics published one of the genetic maps. An international group called the Human Genome Project prepared the other. Each group of scientists estimated that humans have about thirty thousand genes. That is about two times as many genes as some insects.
That number came as a surprise to some people. They wondered how an organism as complex as a human could have so few genes. Some scientists believed the small number of genes was good news. It meant it would be easier to identify all the genes and understand how they work.
In the new study, the Novartis scientists compared the two groups of human genes from the two genetic maps. They found that the two groups of scientists had identified two different sets of genes. Only about half the genes are common to both groups. The Novartis scientists say this means the number of human genes may be about four thousand.
The director of the Human Genome Project, Francis Collins, said he would not be surprised if humans were found to have more than thirty thousand genes. Celera’s President, Craig Venter, notes that the process of discovering the real number is not simple. He said many of the genes noted in his company’s study had not been confirmed.
The real number of human genes may not be known any time soon. Scientists say it probably will take years before we have a list of the genes that control human biology.
That is the end of Part 3. You now have 20 seconds to copy your answers on the Answer Sheet.
选项
A、Right
B、Wrong
C、Not Mentioned
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/6I2d777K
本试题收录于:
BFT听力题库国际化人才外语考试(BFT)分类
0
BFT听力
国际化人才外语考试(BFT)
相关试题推荐
YougotaletterfromJimGreen,apersonworkingatthemarketingdepartmentofacompany.
Therehavebeenmanytechnologicaldevelopmentsinthe20thcentury,forexample,computersandelectricpower.Chooseeitherof
Readthefollowingletterandcompletethegiveninformationform.Writeaword,phraseornumberinthespaces1-5.De
Readthefollowingtextanddecidewhichanswerbestfitseachspace.Forquestions26-45,markoneletterA,B,CorDony
Usingtheinformationinthetext,completeeachsentence14-18withanexpressionfromthelistbelow.Foreachsentence(14
Readthearticlebelow.Choosethebestsentencefromthelistonthenextpagetofilleachofthegaps.Foreachgap(1
Readthefollowingpassageanddecidewhichanswerbestfitseachspace.Forquestions26~45,markoneletterA,B,CorDo
Readthefollowingpassageanddecidewhichanswerbestfitseachspace.Forquestions26~45,markoneletterA,B,CorDo
Whatdoyouthinkofwhenyouhearthewordmotherhood?Ifyouarelikemostpeople,youassociatemotherhoodwithanumberofp
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohavebeenaboutfivemillion.Todayitisestimatedthat
随机试题
张某,男性,47岁,工程师,因“急性阑尾炎”发作而急诊入院。患者目前最需要满足哪一层次的需要
下列说法错误的是( )。
依照商品内容,国际贸易可分为()。
1.题目:侧手翻2.内容:3.基本要求:(1)讲解侧手翻;(2)展示武术侧踹腿动作;(3)讲解约10分钟。请根据以上要求进行试讲。
技术与天才哪个对科学发展更重要——1994年英译汉及详解Accordingtothenewschoolofscientists,technologyisanoverlookedforceinexpandingthehori
Morethananyotherindustry,America’smulti-billion-dollarentertainmentbusinessiscaughtinthecrossfireofthecountry’s
在文件系统中,文件的逻辑结构可分为两类,他们是
WithAirbus’sgiantA380airlineraboutintotaketotheskies,youmightthinkplanescouldnotgetmuchbigger—andyouwoul
Ibecameinterestedinwritingatanearlyage.Sowhenmyfourth-gradeteachertoldmeabouta【C1】______writer’sconferencewh
Mymotheraskedme________herwiththecooking.
最新回复
(
0
)