查询词典 have a test

During the postgenomics era the information about genomic sequence and gene functions provides a new foundation for evolutionary biology and ecology As the first whole-genome sequenced plant Arabidopsis thaliana and its wild relatives have played a critical role in understanding the evolution of genomics and speciation Both A halleri and A lyrata are closely related to the model species A thaliana A halleri ssp gemmifera occurs in northeastern China Japan and Taiwan; while its sister A halleri ssp halleri is mainly distributed in Europe Geographical barriers such as Tienshan Mountain Range isolate these intraspecific sisters Likewise A lyrata ssp kamchatica and ssp lyrata occur in East Asia and North America respectively Such distribution patterns seem to be consistent with allopartic speciation The comparison between ancestral and extant polymorphism by multilocus can be informative about the population genetics of speciation In this study we collected and analyzed DNA sequences of 98 genes from four wild relatives of A thaliana A halleri ssp gemmifera A halleri ssp halleri A lyrata ssp kamchatica and A lyrata ssp lyrata The ancestral states of these four species were compared to each other in terms of level of genetic variation However the ancestral species at the time of speciation were substantially more polymorphic than the extant geographical populations The observations are not fully compatible with speciation by strict allopatry At some species pairs parapatric speciation seems more reasonable in speciation of Arabidopsis The 98 gene sequences are also used for the congruence test between gene genealogy and species phylogeny Only 28 genes support the species phylogeny but there are 23 genes supports another major genealogy { lyrata} thaliana Based on the phylogenetic position change of A lyrata ssp kamchatica and Ks value for each species pair suggested the recent directional gene flow between A halleri ssp gemmifera and A lyrata ssp kamchatica

阿拉伯芥是第一个完成基因体定序的开花植物，其基因体资讯提供植物学研究的重要依据；在解析阿拉伯芥属物种的亲缘关系以及种化机制等重要的演化议题时，阿拉伯芥近缘的野生物种自然成了不可或缺的关键；跟阿拉伯芥近缘的物种包括A halleri及A lyrata，其中A halleri ssp gemmifera主要分布於中国东北、日本以及台湾，与近缘的A halleri ssp halleri其分布於欧洲隔著天山及大陆的障蔽，而A lyrata ssp kamchatica主要分布於东北亚及台湾，与分布於北美五大湖的A lyrata ssp lyrata被北极圈所分隔，这样的分布模式暗示异域种化的可能。藉由多基因分析比较祖先物种与现生物种遗传歧异度的相关可提供讯息探讨种化时期的族群遗传结构，本研究针对A halleri ssp gemmifera、A halleri ssp halleri及A lyrata ssp kamchatica、A lyrata ssp lyrata四个物种，两对互为亚种的姊妹群，以阿拉伯芥为外群进行研究，在四个物种完成98个同源基因的分子序列，利用套装软体MCMCcoal来估算祖先物种的遗传变异，亦估算现生物种的核苷酸歧异度，观察到？多物种配对中祖先物种遗传多型性大於现生物种DNA歧异度，显示异域种化模型并无法完全解释阿拉伯芥属物种的种化模式，在某些物种配对间邻域种化模式应比异域种化更为可能；在基因树与物种树的比较，98个基因片段的亲缘模式只有28个是与已知物种树一致的，有23个基因其树状图支持{ lyrata} thaliana的型式，藉由kamchatica位置的变化以及估算各物种配对间的平均同义置换率，推测在A halleri ssp gemmifera与A lyrata ssp kamchatica间具有近代的单方向基因交流。

If you have symptoms of ectopic pregnancy, you may have a blood test to measure blood levels of human chorionic gonadotropin.

如果你有症状的异位妊娠，您可能有血液测试来衡量血液中的浓度人绒毛膜促性腺激素

Hell, I mean if you think about it there have been some great names, Herbert Sukley, Glen Hilton, I mean, you know, loads of people Comptom, Wally Hammon, that have never had it happen in a test match.

天啊！想想那些高手的名字，哈伯特·苏克利、格伦·希尔顿及威利·哈默等等，他们在锦标赛中从未取得这样的成就。

I've tested this app on the emulator and an HP Jornada, but I didn't have time to test every part of it, so it still could have a nasty crashing bug somewhere.

我测试过这个模拟器和惠普Jornada应用程序，但我没有时间来检验每一项内容，因此它仍然可能有错误的地方恶劣的崩溃。

Some women have decided to have a mastectomy based on DNA test results and family history.

有些妇女就是因为基因测试的结果和家庭病史而决定实施乳房切除手术。

I have a hard to learn mathematics, several math test, the results also have some improvements.

我有努力地学习数学，几次数学考试中，成绩也有一些提高。

Most patients who have rheumatoid arthritis have a positive test for rheumatoid factor and anticyclic citrullinated peptide antibodies, as well as an elevated erythrocyte sedimentation rate and C-reactive protein.

大多数类风湿关节炎患者要进行类风湿因子、抗环瓜氨酸肽抗体阳性测定及红细胞沉降速率及 C 反应蛋白增高的检查。

A test of wind pressure distribution on the New Control Tower of Beijing Airport has carried out.The wind pressure coefficients of mean,maximum and minimum values,as well as wind pressures of 50 and 100 year retune period with both 10 minute and 3 second time averages have been obtained and the top 8 values have been presented.

对某机场塔台模型，在模拟的大气边界层风场中进行了刚性模型测压试验，得到了这一结构的平均风压系数、最大和最小风压系数分布以及对应于 5 0年和 1 0 0年重现期的 3s及1 0min平均的风压值。

The result of AKP test showed that the 3D-colony cells taken the russety colour .The other cells including feeder cells and around cells have not been dyed. It suggests that the 3D-colony cells should have a high activity of AKP, might be in the non-differentiation or low differentiation state.

碱性磷酸激酶的染色结果显示这些细胞克隆呈红褐色，而周围细胞和饲养层细胞未着色或着色很浅，说明这些细胞克隆的内源性碱性磷酸酶活性较高，从而表明这些细胞克隆处于未分化或低分化状态。

I have to take a test next week. i am eagering to have it done at soonest.

下星期我得参加一门考试；我恨不得早点把它考完。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。