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
2009-07-15
62
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 genuine (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 like 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/vAyd777K
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
Wheredidthestrangenoisecomefrom?
【S1】【S4】
TheycallNewYork“theBigApple”.Maybeitisnotexactlylikeanapple,butit’scertainlyverybig.Therearetoomanypeople,
Whowillmostprobablyreadthepassage?Ifadriverwantsloleavehiscarandgototheshops,______.
Whichofthefollowingistrueaccordingtothepassage?
Accordingtothepassage,apersonwhoisnotwillingtochangehismindandhardtodealwith,probablysleeps______.Whicho
Thewitness’sstatementabouttheaccidentwasvery______;weknewalmosteverythingaboutitnow.
Bygoinginpersontotheofficewhich______theforms,shewasabletogetwhatshewanted.
Wemustmakeadifferencebetween______languageand______language.
随机试题
一般将计算机指令的集合称为_______。
辐射散热与下列哪些因素直接有关
下列哪些方剂主治证候中有呕吐
A、口服治疗反复感染的免疫力低下患者B、注射治疗细胞免疫缺陷性疾病C、血小板减少性紫癜D、白血病辅助性免疫疗法E、肾移植泼尼松的主要适应证
精神分裂症的遗传方式,目前认为可能性最大的是()
被评估资产,假设使用年期为无限,未来第1年年纯收益为100万元,资本化率为10%,若:(1)未来各年的纯收益在上一年的基础上增加1万元;(2)未来各年的纯收益在上一年的基础上增长1%。要求:试确定两种情况下该资产的评估价值各为多少。
党的十七大报告提出,发展中国特色社会主义的基本要求是()。
在反应时实验中,常用的两个因变量是()
TodayIamgoingtotellyousomethingaboutPresidentChesterArthurandhiscivilservicereform.ChesterArthurwaselectedv
It’snogood______her.Sheissuchamiserthatshewon’tspareapennyout.
最新回复
(
0
)