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
医学
It is a wise father that knows his own child, but today a man can boost his paternal (fatherly) wisdom — or at least confirm tha
It is a wise father that knows his own child, but today a man can boost his paternal (fatherly) wisdom — or at least confirm tha
admin
2018-03-26
48
问题
It is a wise father that knows his own child, but today a man can boost his paternal (fatherly) wisdom — or at least confirm that he’s the kid’s dad. All he needs to do is shell out $30 for a paternity testing kit (PTK) at his local drugstore—and another $120 to get the results.
More than 60, 000 people have purchased the PTKs since they first become available without prescriptions last year, according to Doug Fogg, chief operating officer of Identigene, which makes the over-the-counter kits. More than two dozen companies sell DNA tests Directly to the public, ranging in price from a few hundred dollars to more than $2, 500.
Among the most popular: paternity and kinship testing, which adopted children can use to find their biological relatives and families can use to track down kids put up for adoption. DNA testing is also the latest rage among many passionate genealogists — and supports businesses that offer to search for a family’s geographic roots.
Most tests require collecting cells by swabbing saliva in the mouth and sending it to the company for testing. All tests require a potential candidate with whom to compare DNA.
But some observers are skeptical. "There is a kind of false precision being hawked by people claiming they are doing ancestry testing, " says Troy Duster, a New York University sociologist. He notes that each individual has many ancestors—numbering in the hundreds just a few centuries back. Yet most ancestry testing only considers a single lineage, either the Y chromosome inherited through men in a father’s line or mitochondrial DNA, which is passed down only from mothers. This DNA can reveal genetic information about only one or two ancestors, even though, for example, just three generations back people also have six other great-grandparents or, four generations back, 14 other great-great-grandparents.
Critics also argue that commercial genetic testing is only as good as the reference collections to which a sample is compared. Databases used by some companies don’t rely on data collected systematically but rather lump together information from different research projects. This means that a DNA database may have a lot of data from some regions and not others, so a person’s test results may differ depending on the company that processes the results. In addition, the computer programs a company uses to estimate relationships may be patented and not subject to peer review or outside evaluation.
In the last paragraph, a problem commercial genetic testing faces is______.
选项
A、disorganized data collection
B、overlapping database building
C、excessive sample comparison
D、lack of patent evaluation
答案
A
解析
事实细节题。从最后一段第二句我们可以看出“一些公司使用的数据库并不依赖于系统的数据收集而是把不同研究机构收集的信息合在一起。这就意味着处理数据的公司不同,所用DNA数据库也会不同。”文中并未提及数据是否重合,B无根据。C、D文中没有体现。
转载请注明原文地址:https://kaotiyun.com/show/DwT3777K
本试题收录于:
医学博士外语题库考研分类
0
医学博士外语
考研
相关试题推荐
男,30岁,跑步时突感右腰痛,并出现肉眼全程血尿3小时来院,首先应做的检查是
男性,30岁。呼吸困难2天就诊,发病前有鼻痒,喷嚏。既往有类似病史。体检:呼吸20次/分,双肺可闻及呼气末哮鸣音,心率96次/分,律齐。动脉血气分析,PaCO238mmHg,PaO296mmHg,pH7.39。根据临床表现和血气分析结果,其病情程度分级
Cultureshockmightbecalledanoccupationaldiseaseofpeoplewhohavebeensuddenlytransplantedabroad.Likemostailments,
A、Notalkingisallowed.B、Identificationcardsmustbedisplayed.C、Foodanddrinksarenotallowed.D、Computersciencemajors
Everyday,overamillionpeoplelogontodifferentInternet-basedgames.Thereistrulysomethingforeveryoneinthegamingwo
A、Hewilldoasrequested.B、Hewillnotjointheteam.C、Thewomaniscrazyabouthim.D、Thewomanhastroublestanding.B由男士的话
Duringthepast30yearsorso,healthcarehasincreasinglybecomeaformofbusiness.Inaddition,theenvironmentsurroundin
Inlightofhisgoodrecord,thepoliceaccepteddefense.
Thebasiccausesareunknown,althoughcertainconditionsthatmayleadtocancerhavebeen______.
随机试题
短期经济和长期经济的区别是()。
在某地进行甲型病毒性肝炎的调查中,共发现病人231例。其中男性158例占68.40%,女性73例占31.60%,提示
患儿,男,14岁。2周前患急性咽炎。1天前突然牙龈出血,口腔血疱,双下肢瘀斑。实验室检查:血红蛋白110g/L,白细胞9×109/L,血小板10×109/L,骨髓增生活跃,巨核细胞23个/片。应首先考虑的诊断是
子宫的功能不包括()。
为抵消焊接变形,在焊前装配时先将焊件向焊接变形相反的方向进行人为变形的方法,是预防焊接变形装配工艺措施中的()。
小段父母离世较早,与妹妹相依为命。不幸的是妹妹由于一起车祸落下来终身残疾,并导致智力有障碍。小段由于工作原因,要出国工作几年,为了自己离开后妹妹生活不至于没有着落,小段与某信托公司签订了一份3年期限的信托合约,将上海市区的一栋房子作为信托财产转移到信托公司
根据《民法通则》的规定,( )是限制民事行为能力人。
我国的宗教团体在坚持独立自主自办的方针下,实行()。
结合材料回答问题:材料1在新的起点上,我们将坚定不移实施创新驱动发展战略,释放更强增长动力。抓住科技创新就抓住了发展的牛鼻子。我们清醒认识到,中国经济发展不少领域大而不强、大而不优,长期以来主要依靠资源、资本、劳动力等要素投入支撑经济增长和规模扩张的方
A、Withathesisstatement.B、Withalistofreferences.C、Withasummaryoftheconference.D、Withaconclusionofthepaper.A这
最新回复
(
0
)