首页
登录
职称英语
DNA fingerprinting is used to determine where particular genetic material ca
DNA fingerprinting is used to determine where particular genetic material ca
游客
2023-08-23
55
管理
问题
DNA fingerprinting is used to determine where particular genetic material came from, that is what person or group of people’ s material is mostly likely to come from. Only 1% of our DNA differs from other individuals since 99% of human DNA is identical. That 1% though can allow scientists to differentiate its origin.
DNA fingerprinting is most commonly used to determine our heredity. When used alongside more traditional sociological methodologies, DNA fingerprinting can be used to find out exactly where we came from, in some cases, which tribe. However, DNA fingerprinting cannot discriminate between identical twins.
Most people are aware of the use of DNA fingerprinting in forensic medicine. Samples gathered at a crime scene can be compared with the DNA of a suspect to prove his or her presence at or involvement with the crime. The problem is that DNA bases only hold the DNA of people who have already been convicted of a crime. They do not contain the DNA of whole populations so it impossible to use this technique to track down suspects that are nor present in the database. However this might change. If governments replace photograph ID cards to that of DNA fingerprint ID cards, then it will be far easier to track down anyone within a nation’ s population.
DNA fingerprinting can also help us to predict our future health. It is often used to track down the genetic basis of inherited diseases. If there is a particular, recurring pattern in different patients, scientists can narrow down which gene or genes might be involved. It can also be used to screen parents and fetuses for the presence of inherited abnormalities, such as Huntington’s disease or muscular dystrophy, so appropriate advice can be given and
precautions
taken as needed.
The use of DNA fingerprinting and genetic screening is fast in changing society and the way we treat illnesses, track down criminals and soon, identify the public. It is a science that has dramatically changed society and continues to make great contributions to health and science in all fields. [br] The word "precautions"(Line 6, Para.4)is closest in meaning to_____.
选项
A、care
B、conclusions
C、safeguards
D、impasses
答案
C
解析
语义题。原文意为,指纹识别法可以用来鉴别父母与胎儿遗传异常,例如亨廷顿病或肌营养不良,这样人们便可以得到适当建议,来采取所需的预防措施。根据构词法pre表示提前,cautions为小心之意,可推测为“预防”。选项C,“保护手段,保护措施”是同义词。
转载请注明原文地址:http://tihaiku.com/zcyy/2951086.html
相关试题推荐
[originaltext]Climate,morethananyothersinglefactor,determinesthedi
[originaltext]W:Whatarethosebooksinyourhand?M:Nothingparticular.Just
[originaltext]W:Whatarethosebooksinyourhand?M:Nothingparticular.Just
[originaltext]Facialexpressionscarrymeaningthatisdeterminedbysituat
[originaltext]Facialexpressionscarrymeaningthatisdeterminedbysituat
Geneticallymodified(改良的)cropsareeverywhere.ItseemseveninEurope,stri
Geneticallymodified(改良的)cropsareeverywhere.ItseemseveninEurope,stri
Geneticallymodified(改良的)cropsareeverywhere.ItseemseveninEurope,stri
[originaltext]Facialexpressionscarrymeaningthatisdeterminedbysituat
[originaltext]W:Everybodyistalkingaboutgenestoday,butdogenesdetermine
随机试题
CounselingTeamandtheServices1.Counselingteam.Na
Mostofanimalscommunicatewithoneanothertoagreaterorlesserde-(1)_
Areyouthinkingabouttryingoutapoliticalcareerbutyour【C1】______ar
Childrenmodelthemselveslargelyontheirparents.Theydoso【C1】______thro
下列关于借款人自主支付的表述,错误的是( )。A.自主支付是受托支付的补充
小龙2017年初留学归国进入家族企业工作,他想要买一辆关税完税价格50万元德国产
在血清学指标中与饮酒量关系最密切的是A.ALTB.GGT和CDTC.ASTD.A
下列各项中属于业务类审计工作底稿的有( )。A.应收账款账龄分析表 B.审计
下列对决定房地产需求量因素的描述中,正确的有( )。A.当价格上涨后,需求量减小
中药硬胶囊剂所含水分不得过A.5.0% B.7.0% C.9.0% D.1
最新回复
(
0
)