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Results: miR27a was identified as the most stable reference gene by geNorm and Normfinder software. Among the 52 microRNAs detected by real time PCR array, miR-33 and miR-19a were significantly down-regulated, whereas miR-130 were significantly up-regulated in the hippocampus of Ts65 Dn mice as compared with the euploid control mice. The expression of miR-802, which was the trisomy chromosome 16 derived microRNAs, was very low in hippocampus with no difference between the two groups.

结果：geNorm和Normfinder两种方法均选定miR-27a为最稳定的内参照基因，共检测了52种microRNAs，其中miR-33和miR-19a在Ts65Dn小鼠海马组织中表达显著下调，miR-130在Ts65Dn小鼠海马组织中表达显著上调，小鼠16号染色体三体区段包含的miR-802在Ts65Dn小鼠和对照二倍体小鼠海马组织中表达量均低，差异没有统计学意义。

The dominant male sterility was expressed normally in the new Taigu genic sterile wheat carrying the intergenomically translocated Ms2, and the female fertility mechanism in its male sterile plants was normal as well. Observation of the chromosome configuration at meiosis of pollen mother cells of the young ears of the sterile plants showed that they were euploid plants (2n=42). No configurations different from those of the Taigu geneic sterility gene located at the original locus were noticed of the Ms2 intergenomically translocated back into the common wheat.

所获携带易组Ms2基因的新型太谷核不育小麦其显性雄性不育特性表达正常，且雄性不育株的雌性可育机制正常，对不育株幼穗花粉母细胞减数分裂期染色体构型的观察可见其为整倍体(2n=42)，尚未发现回归普通小麦的易组太谷核不育基因与原位点的太谷核不育基因有不同的表型。

Euploidy The normal state in which an organism ' s chromosome number is an exact multiple of the haploid number characteristic of the species.

整倍性：正常状态下，生物体染色体数是此种生物单倍体数目整数倍的现象被称为整倍性。

In eutherian mammals, XCI is thought to be triggered by the expression of the non-coding Xist RNA from the future inactive X chromosome3, 4, 5; Xist RNA in turn is proposed to recruit protein complexes that bring about heterochromatinization of the Xi6, 7. Here we test whether imprinted XCI, which results in preferential inactivation of the paternal X chromosome, occurs in mouse embryos inheriting an Xp lacking Xist.

在最新一项研究中，美国北卡罗琳娜大学研究人员用小鼠胚胎（研究人员用基因工程方法使这些小鼠在其未来失活的X-染色体上含有一个有缺陷的Xist基因）所做的新的研究工作显示，实际情况更为复杂。

A new Double Layers Chromosome Coding Schema and a new Subtour Exchange Algorithm are proposed for Capacitated Vehicle Routing problem.

4对于带能力约束的车辆路径问题，提出了一种新的双层染色体编码方案和一种子路径交换算法。

The stable expression of exogenous gene in E.coli chromosome had no effect on the bacterial growth and propagation.

外源基因在大肠杆菌染色体上的稳定表达并不影响细菌的生长繁殖。

Only using sperm that carry an X chromosome to fertilise the egg means only unaffected girls are conceived.

只选择带有X染色体的基因的精子进入卵子。也就是说生一个没有缺陷的女儿。

They are not sure why smokers produce fewer boys, but they suspect that sperm carrying the Y chromosome for male children may be more susceptible to the effects of tobacco which could make it less likely to fertilise the woman's egg.

他们无法确定，为什么吸烟者生男孩的可能性较小。但是他们怀疑，决定生男孩的携带y 染色体的精子更容易受香烟的影响，使其与卵子结合的可能性降低。

Objective To study the effect of the big Y chromosome on in vitro fertilization embryo transfer outcome.

目的 研究大Y染色体对体外受精-胚胎移植结局的影响。

A new study reported by Belgian scientists suggests that there are severe chromosome abnormalities found in over 90% of eggs fertilized for in vitro treatments .

一项新的研究报告由比利时科学家认为，有严重的染色体异常发现90 ％以上的卵子受精体外治疗。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！