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
2019-01-04
74
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.
Both of the two competing teams of scientists found that humans have about the same number of genes as some insects.
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/nn2d777K
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
Therehavebeenmanytechnologicaldevelopmentsinthe20thcentury,forexample,computersandelectricpower.Chooseeitherof
Readthefollowingletterandcompletethegiveninformationform.Writeaword,phraseornumberinthespaces1-5.De
Readthefollowingletterandcompletethegiveninformationform.Writeaword,phraseornumberinthespaces1-5.De
Youarearegionalmanagerforaninternationalcompany.Youhavebeenaskedtogotoameetingatyourcompany’sheadoffice.Y
Readthefollowingtextanddecidewhichanswerbestfitseachspace.Forquestions26-45,markoneletterA,B,CorDony
Readthefollowingtextanddecidewhichanswerbestfitseachspace.Forquestions26-45,markoneletterA,B,CorDony
Readthefollowingpassageanddecidewhichanswerbestfitseachspace.Forquestions26~45,markoneletterA,B,CorDo
WildBillDonovanwouldhavelovedtheInternet.TheAmericanspymasterwhobuilttheOfficeofStrategicServicesinWorldWar
1.WhydosomanyAmericansdistrustwhattheyreadintheirnewspapers?TheAmericanSocietyofNewspaperEditorsistryingto
随机试题
A.IgGB.IgMC.IgAD.IgDE.IgE可以旁路途径激活补体,并参与黏膜局部免疫的抗体是
A.结缔组织病B.支气管肺炎C.肺炎链球菌肺炎D.布氏杆菌病E.急性白血病发热伴皮肤黏膜出血多见于
下列选项中,不属于艾滋病口腔表征的是
在电力系统分析和计算中,功率、电压和阻抗一般分别是指()。
加强党内监督意义重大,对此表述有误的是()。
根据《中华人民共和国立法法》的规定,基层群众自治制度属于地方性法规可以规定的事项。()
一位贫穷的农民喜欢这样教导他的孩子们:“在这个世界上,你不是富就是穷,你不是诚实就是不诚实。由于所有贫穷的农民都是诚实的,所以,每个富裕的农民都是不诚实的。”上述论证以哪项为假设,这位农民的结论能合乎逻辑地推导出来?()
已知四元齐次线性方程组(i)的解全是四元方程(ii)x1+x2+x3=0的解。求a的值;
WhatadvicedodoctorsgiveaboutvitaminC?DoctorsrecommendvitaminCto______.Whendothedoctorssuggestyoushould
Nowadays,somethinghasgoneterriblywrongwithouronce-proudAmericanwayoflife.Ithashappenedintheareaof【C1】______A
最新回复
(
0
)