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
2024-04-22
4
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:https://tihaiku.com/zcyy/3566035.html
相关试题推荐
DNAfingerprintingisusedtodeterminewhereparticulargeneticmaterialca
DNAfingerprintingisusedtodeterminewhereparticulargeneticmaterialca
DNAfingerprintingisusedtodeterminewhereparticulargeneticmaterialca
GeneticEngineeringisaradicalandrapidlydevelopingtechnologythattouc
DNAfingerprintingisusedtodeterminewhereparticulargeneticmaterialca
DNAfingerprintingisusedtodeterminewhereparticulargeneticmaterialca
DNAfingerprintingisusedtodeterminewhereparticulargeneticmaterialca
GeneticEngineeringisaradicalandrapidlydevelopingtechnologythattouc
GeneticEngineeringisaradicalandrapidlydevelopingtechnologythattouc
GeneticEngineeringisaradicalandrapidlydevelopingtechnologythattouc
随机试题
ChineseEconomyThesizeoftheChineseecono
设A为m×n阶矩阵,且r(A)=m
佛鲁姆的期望理论中,期望概率是指当事人主观判断的概率,它与个人的()有关。A.
抗震建筑除顶层外其他层可局部收进,收进的平面面积或尺寸:()A.不宜超过下层
下列存储器中读取速度最快的是A.内存 B.硬盘 C.软盘 D.光盘
2019年1—2月份,全国规模以上工业企业实现利润总额7080.1亿元,同比下降
下列关于消费函数的说法中,正确的是( )。A.可支配收入等于零时的消费支出称为
下列人工消耗量中,属于人工幅度差用工的有()。A.砌筑墙体工程的砌砖用工
下列各种利率中,()可以灵敏地反映金融市场上资金的供求状况,借贷双方所承担的利
下列属于确定型网络计划的有()。A.计划评审技术 B.双代号网络计划 C.搭
最新回复
(
0
)