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
Whatever our differences as human beings are, we all think we’re more like the rest of the animal world than we realize. It is s
Whatever our differences as human beings are, we all think we’re more like the rest of the animal world than we realize. It is s
admin
2008-12-15
32
问题
Whatever our differences as human beings are, we all think we’re more like the rest of the animal world than we realize. It is said that we share 40 percent of our genetic (遗传的) structure with the simple worm.
But that fact has helped Sir John Sulston win the 2002 Nobel Prize for Medicine. Sir John is the founder of the Sanger Institute in Cambridge, which was set up in 1992 to get further understanding of the human genome (染色体组).
To help them do this, they turned to the worm. The nematode (线虫类的) worm is one of the earliest creatures on planet earth. It is less than one millimeter long, completely transparent and spends its entire life digging holes through sand. But it still has lots to say about human life, and
what can be done to make it better.
What the worm told Sir John and his colleagues was that each of cells in the human body is programmed like a computer. They grow, develop and die according to a set of instructions that are coded in our genetic make-up.
Many of the diseases that humans suffer from happen when these instructions go wrong or are not obeyed. When the cell refuses to die but carries on growing instead, this leads to cancer. Heart attacks and diseases hke AIDS cause more cell deaths than normal, increasing the damage they do to the body. Sir John was the first scientist to prove the existence of programmed cell death.
选项
A、found that human beings are similar to the worm
B、got the fact we share 40 percent of our genetic structure with the simple worm
C、found the computer which controls each of the cells in the human body
D、proved that cell death is programmed
答案
D
解析
由文中最后一句话Sir John was the first scientist to prove the existence of programmed cell death.可知D 是正确的。A、B 两项提供研究前提。
转载请注明原文地址:https://kaotiyun.com/show/ZeNd777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
0
公共英语二级笔试
公共英语(PETS)
相关试题推荐
Medicinecomesinmanyforms.Initsliquidform,medicineaffectsthebodyveryquickly.Buttheeffectsofliquidmedicinearc
Readthefollowingtextfromadiscussioninwhichfivewomentalkedabouttheirviewsonmarriage.Forquestions61to65,matc
Theartmarketisawindowonthethoughtsoftheveryrich.InNovember,1994,BillGates,founderoftheMicrosoftcomputerem
AnkitaAgarwal:Yourarticlemademeashamed.I’vealwaysthoughtofmyselfasnotthetypicalself-absorbedteenager,butIgue
Whatarethetwospeakerstalkingabout?
Today’spolicemaninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
Whyarethemanandthewomandiscussingtheapartment?
Botany,thestudyofplants,occupiesapeculiarpositioninthehistoryofhumanknowledge.Formanythousandsofyearsitwas
Youmusthavebeentroubledbywhentosay"Iloveyou"becauseitisoneofthegreatestpuzzlesinourlife.Whatifyous
Whatimpressionsareyoumakingonthepeoplearoundyou?Yourwords,phrases,evenyourmessagemaysoonbeforgottenbutbelie
随机试题
A.回盲部B.盲肠和升结肠C.末端回肠D.乙状结肠和直肠肠伤寒的好发部位是
按给药途径分类,栓剂属于
下列选项中,既能止血又能活血的药物是
工程投标竞争的实质是()。
合同的订立,是指缔约人为意思表示并达成合意的状态,当事人订立合同,采取()的方式。
Psychologistshavedoneextensivestudiesonhowwellpatients______withdoctors’orders.
计算重置成本时,不应计入的费用是()。
马克思说:“各种经济时代的区别,不在于生产什么,而在于怎样生产,用什么劳动资料生产。劳动资料不仅是人类劳动力发展的测量器,而且是劳动借以进行的社会关系指示器”它说明了劳动资料是
设f(x)=3x2+x2|x|,则使f(n)(0)存在的最高阶数n为()
Ratesarelow,butconsumerswon’tborrowWithheavydebtloadsandhighjoblessness,Americansarecautious.TheU.
最新回复
(
0
)