首页
登录
职称英语
It is a wise father that knows his own child, but today a man can boost his
It is a wise father that knows his own child, but today a man can boost his
游客
2024-02-08
54
管理
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 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 years, 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 passionate genealogists — and supports businesses that offer to search for a family’s geographic roots.
Most tests require collecting cells by webbing saliva(唾液)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 Trey 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(世系), either the Y chromosome(染色体)inherited through men in a father’s line or mitochondrial(线粒体)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. [br] The first two paragraphs of the passage shows PTK’s______.
选项
A、easy availability
B、flexibility in pricing
C、successful promotion
D、popularity with households
答案
A
解析
根据题干中的the first two paragraphs将本题出处定位于前两段。首段提到,男士在附近的药店里花30美元就可买到一个父子关系测试包(PTK)。第2段首句提到无需处方就可以买到PTK,第2句强调许多公司直接向公众出售基因测试工具。由此可知,前两段提到PTK时主要说的是它很容易买得到,故答案为A)。第2段首句虽提到有6万人购买PTK,但并未提及它是否流行,故排除D)。
转载请注明原文地址:http://tihaiku.com/zcyy/3433105.html
相关试题推荐
Itisawisefatherthatknowshisownchild,buttodayamancanboosthis
Itisawisefatherthatknowshisownchild,buttodayamancanboosthis
Itisawisefatherthatknowshisownchild,buttodayamancanboosthis
Itisawisefatherthatknowshisownchild,buttodayamancanboosthis
[originaltext]W:Son,Idon’tknowwhattogetforyourfather.Hehasaboutev
[originaltext]W:Son,Idon’tknowwhattogetforyourfather.Hehasaboutev
[originaltext]W:Son,Idon’tknowwhattogetforyourfather.Hehasaboutev
Afather’srelationshiptohischild’scurrentandfutureacademicsuccessa
Afather’srelationshiptohischild’scurrentandfutureacademicsuccessa
[originaltext]AproudUSfatherhasnamedhissonafteracomputersoftware
随机试题
A、Youshouldgointroduceyourselflater.B、Youshouldwaitafewmoredays.C、Y
[audioFiles]audio_eusm_j06_001(20082)[/audioFiles]A、Whetherthewomanneedshis
Idosmokealot,butit________(未必就意味着)Iwilldieoflungcancer.Doesnotne
ScientistsWeighOptionsforRebuildingNewOrleansAsexperts
投资者预期市场利率下降,其合理的判断和操作策略有()。A、适宜选择利率期货空头策略B、适宜选择利率期货多头策略C、利率期货价格将下跌D、利率期货
【基本要求】 (1)讲解等比数列的概念; (2)教学中注意师生间的交
A.拮抗组胺H受体 B.拮抗白三烯受体 C.兴奋β肾上腺素受体 D.拮抗M
依据《中华人民共和国教师法》的相关规定,教师有下列哪种情形,可以由其所在学校予以
房产税常常被认为是政府抑制投机性购房,增加炒房者持有成本,遏制高端投机行为的措施
如果一方当事人申请撤销仲裁裁决,而另一方当事人申请执行仲裁裁决的,人民法院首先应
最新回复
(
0
)