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
Unlocking the Human Genome(基因组) 1 A project to unlock secrets-what scientist could resist that challenge? This is what many
Unlocking the Human Genome(基因组) 1 A project to unlock secrets-what scientist could resist that challenge? This is what many
admin
2009-01-21
80
问题
Unlocking the Human Genome(基因组)
1 A project to unlock secrets-what scientist could resist that challenge? This is what many scientists are doing as they work on the Human Genome Project. The aim of the project is to decode(破译)all of the some 100, 000 genes in the human body. Scientists are using DNA fingerprinting techniques to do the decoding.
2 DNA is the substance found in the chromosomes(染色体)of a cell. A chromosome is a chain of genes. Each gene carries a piece of genetic information. At any one moment in a cell, thousands of genes are turned on and off to produce proteins(蛋白质). The challenge for scientists is to find out what role each gene plays in protein production. At some point this decoding will be complete. Then scientists will have a map of an ideal genome, or a picture of the total genetic nature of a human being. The ideal genome is called a consensus(交感)genome. Everything works well in a consensus genome.
3 But no one in the world has a consensus genome. Everyone’s genome is different from the ideal. These differences are referred to as genetic mutations(突变). Genetic mutations in a person’s genome mean that the person has a greater than average chance of suffering from health problems. Some problems are not life-threatening. These would include things like colorblindness, or mild headaches. Other problems are serious, such as heart disease, or cancer.
4 It will take years to identify the role of each of the 100, 000 genes, The short-term goal of the project is to find the physical and mental health problems a person is likely to encounter during his or her lifetime. The long-term goal is to have each person live a longer, healthier life.
选项
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/Jehd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
JewelThiefCapturedAt1:30thismorning,localpolicefinallycaughtthejewelthiefwhomtheyhadbeentryingtotrap(诱捕
MenTooMaySufferfromDomesticViolenceNearlythreein10menhaveexperiencedviolenceatthehandsofanintimate(亲密的)
LudwigVanBeethovenLudwigVanBeethoven,amajorcomposerofthenineteenthcentury,overcamemanypersonalproblemstoac
ChangesofWomen’sRoleTheroleofwomeninBritainhaschangedalotinthiscentury,(51)inthelasttwentyyears.Them
SwineFluinNewYorkTheCentersforDiseaseControlandPrevention(CDC)hasconfirmedcasesofswine(猪)【51】ineightstud
Thecityhasdecidedtodoawaywithalltheoldbuildingsinitscenter.
Manydifficultwordsareoutsidethescopeofthislearner’s.
Hundredsofbuildingswerewreckedbytheearthquake.
Shewasgratefultohimforbeingsogoodtoher.
Shewasgratefultohimforbeingsogoodtoher.
随机试题
简述系统设计说明书的内容。
既能敛肺降火,又能收敛止血,尤宜于咳嗽咯血者的药物是
运动神经元病包括
下列对支气管哮喘的描述正确的是
大叶性肺炎的典型影像学表现见于病变的
A、薄层色谱法B、气相色谱法C、高效液相色谱法D、目视比色法E、紫外分光光度法黄体酮中检查有关物质的方法是
《合同法》规定,有下列()情形的,当事人有权请求人民法院撤销其合同。
海关规定过境货物的过境期限为(),因特殊原因,可申请延期,经海关同意后可延期()。
保险具有科学性,主要表现在()。
对基金经理的分析和评价通常采用定性研究方法。()
最新回复
(
0
)