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
60
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
YourarethesalesmangerofACLCompany.Yourcustomer,JacksonBryer,invitesyoutohavedinnerwithhimonTuesdaytheTwelf
Therehavebeenmanytechnologicaldevelopmentsinthe20thcentury,forexample,computersandelectricpower.Chooseeitherof
Readthefollowingtextanddecidewhichanswerbestfitseachspace.Forquestions26-45,markoneletterA,B,CorDony
Readthefollowingtextanddecidewhichanswerbestfitseachspace.Forquestions26-45,markoneletterA,B,CorDony
Readthefollowingtextanddecidewhichanswerbestfitseachspace.Forquestions26-45,markoneletterA,B,CorDony
Readthearticlebelow.Choosethebestsentencefromthelistonthenextpagetofilleachofthegaps.Foreachgap(1
Readthefollowingpassageanddecidewhichanswerbestfitseachspace.Forquestions26~45,markoneletterA,B,CorDo
NolongerdomostofEurope’sundergraduateswanttodirtytheirhandsproducingthingsorprovidingservicestocustomers.【R1】_
Lookatthetenstatementsforthispart.Youwillhearapassageabout"GreatTransformation".Youwilllistentoittwice
Lookatthetenstatementsforthispart.Youwillhearapassageabout"GreatTransformation".Youwilllistentoittwice
随机试题
关于低温热水地板辐射采暖系统,以下哪种说法是错误的?[2007年第75题]
患者,男,65岁。肺癌患者,住院化学治疗期间渐起左下肢肿胀,疼痛。Doppler超声检查提示深静脉炎。予抗凝治疗后症状有所改善。今日早餐进食时突感气急、胸闷和心前区疼痛,呈进行性加重。检查见患者口唇明显发绀,坐位,心界扩大,心率120次/分,律齐,P2亢进
外科治疗门静脉高压症最主要的目的是
根据城市维护建设税的规定,下列说法正确的是()。
发散思维测验是创造性测量的核心,而将对发散思维的测量作为测量创造性的主要内容是基于吉尔福特提出的()。
下边这两套图形具有某种相似性,也存在某种差异。请从所给的四个选项中,选出取代问号的一个,使得两套图表现出最大的相似性,并使得第二套图也表现出自己的特征()
多项式x²+x+m能被x+5整除,则此多项式也能被下列多项式整除的是()。
设A,B都是n阶矩阵,其中B是非零矩阵,且AB=O,则().
Whatdoesthewomanlikeaboutthearmchair?
A
最新回复
(
0
)