拟染色体

Objective Loss of heterozygosity of tumor suppressor gene is believed to play a key role in carcinogenesis of colorectal cancer.

目的抑癌基因的杂合缺失被认为是结直肠癌形成的通路之一，本实验拟通过对染色体10q23～24区的LOH分析，发现高频杂合缺失区域并筛查与结直肠癌相关的抑癌基因。

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 formation process of the chromatoid body could only be observed in spermatogonia.

仅在精原细胞中观察到拟染色体的形成过程。

Chromatoid bodies existed at all stages of spermatogenic cells except in spermatids.

在精子细胞阶段之前的各期生精细胞中都存在拟染色体。

Comparabilityof some segments reached about 86% to 90% including Arabidopsis thaliana CIPK7、Arabidopsis thaliana At3g23000 gene、Arabidopsis thaliana SNF1 related protein kinase(At3g23000; MXC7.3) mRNA、Cucumis sativus RBL1 mRNA, complete cds、Ranunculusmacranthus ribosomal protein L14 (rp114) gene, partial cds、Daucus carota chromasomecomplete genome and so on. There are also some other segments had a low identity andconsidered as unknown genes.

对部分差异条带进行了克隆测序，登陆GENEBANK对差异cDNA片断的序列进行核苷酸及氨基酸的同源性对比，其中一些片断与拟南芥CIPK7、拟南芥At3g23000基因、拟南芥SNF1相关蛋白激酶mRNA、栽培黄瓜RBL1mRNA全序列、毛茛核糖体蛋白L14基因、胡萝卜染色体基因组等均有86％-90％左右的同源性，还有部分片断的同源性很低，可能为未知基因序列。

The current taxonomic status of the Clemmys complex of freshwater turtles places the Old World genera Mauremys and Sacalia in the Geoemydidae and the New World genus Clemmys in the Emydinae. These three genera were previously considered to be congeneric.

水龟组由旧大陆潮龟科的拟水龟属、眼斑龟属和新大陆龟科的水龟属组成，这三个属以前一直被认为是同属的，但没有得到形态学和染色体等方面的认同。

Then, concerning the difficulty of ascertaining hysteresis time of piezometric tube, Genetic Algorithm-Radial Basis Function Neural Network model is developed according as the method that reservior level is rectilinear correlation with piezometric tube level, which not only could be calculated by computer but also is showed logical and feasible.

针对以往监测模型预测精度难以保证的的问题，本文在分析比较了几种土石坝安全监测预报模型的基础上，提出了一种新的安全监测预报模型——遗传回归模型，该模型通过遗传染色体对建模因子进行优选，并在适应度函数中综合考虑模型拟合精度与预测精度平衡。

Spermatogenesis education isthe seminal vesicle for the same spermatocyst, the size of the nucleus is very similar tochromosomal changes, and the developmental level coincide.

拟黑多刺蚁精子发生是以育精囊为单位进行的，同一育精囊的生精细胞形态、大小以及细胞核内染色体变化极其相似，发育水平比较一致。

Genomic DNA of positive transformed plants; 6, 7: Genomic DNA of negative transformed plants; 9: genomic DNA of untransformed plants; 10: Positive control of 3G1MHpCAMBIA2301; 11: NTC; 12: DL 2000 marker.

2.2 转基因拟南芥的筛选选择培育后获得转基因拟南芥植株。从其叶片中提取微量DNA， PCR鉴定，可扩增出750 bp左右片段（图3），表明3G1MHpCAMBIA2301基因已整合到拟南芥染色体中。

Its pattern was similar to that of other teleosts.

拟染色体的形成方式与其它鱼类中拟染色体的形成方式相似。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。