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染色体交换

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Methods Chromosome analysis technique was used to study sister chromatid exchange frequencies of in-vitro-culture blood lymphocyte.

采用染色体分析技术,对体外培养的外周血淋巴细胞姊妹染色单体交换频率进行观察。

Methods Chromosome analysis technique was used to study sister chromatid exchange frequencies of in-vitro-culture blood lympho-cyte.

采用染色体分析技术,对体外培养的外周血淋巴细胞姊妹染色单体交换频率进行观察。

Results:There were no significant difference in chromosomal aberration,sister chromatid exchangeand micronuclei.

结果:染色体畸变率、姊妹染色单体交换、微核率,各处理组与对照组比较均无显著性差异。

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。

Donor bacteria, through its pilus bacteria with receptors contact, the former transmission of different length single strand of DNA to the latter, and in the latter cells for double-stranded or further nuclear chromosome in exchange, integration, so that the latter was the donor of the genetic traits phenomenon.

供体菌通过其性菌毛与受体菌相接触,前者传递不同长度的单链DNA给后者,并在后者细胞中进行双链化或进一步与核染色体发生交换、整合,从而使后者获得供体菌的遗传性状的现象。

The analysis of the mutants of amrA and amkA showed that the production of rifamycin SV had decreased about 10%-20%.

用双交换法在地中海拟无枝菌酸菌U32染色体上插入阿泊拉霉素抗性基因,成功地构建了了amrA,amkA和amrB基因的突变株,其中amrA,amkA基因突变株的菌丝形态与野生型U32之间有较明显的差别,在菌丝的末端形成卷曲或弯曲。

The somatic hybrids usually showed specific bands and combined all the bands of both parents. In combinations, some new bands were detected, and occasionally specific bands of parents were lost, which indicated that chromosome recombination and exchange happened after fusion. Additionally, in some combinations, specific bands from leaf parent were detected, which revealed the plants were of putative hybrid origin, because leaf protoplast cannot redifferentiate by both single culture and co-culture.

体细胞杂种一般表现为具有双亲的特征带,且综合双亲的所有带,但在部分杂种中检测到了双亲都没有的新带,也发现有丢失亲本的特征带或共有带的现象,说明融合后染色体发生了重组和交换;有的引物只检测到叶肉亲本的特征带,根据柑橘叶肉细胞无论单独培养还是共培养均不能再生的事实,可推测其为体细胞杂种或二倍体叶肉亲本型胞质杂种。

The two homologues trade genes in a process called "crossing over."

这两对同源染色体在一个叫做&互换&的过程中交换基因。

Crossing–over between homologous chromosomes during stage (1) above.

[同源染色体之间的交换,在上面的第(1)阶段]

A recombinational event in which regions of DNA are exchanged between homologous chromosomes.

DNA区域在同源染色体之间发生交换的重组事件。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。