二基因的

F〓 of transgenic allotetraploid fish containing"all-fish"transgene——pCAgcGHc was obtained respectively by inbreeding and gynogenesis. Positive rate of pCAgcGHc detected by PCR was 90％ in F〓 of transgenic allotetraploid fish produced by inbreeding, while most F〓 of transgenic allotetraploid fish produced by gynogenesis showed diploidy measured by flow cytometer. The results above imply that developing the pure line of transgenic allotetraploid fish through inbreeding is feasible, but the operation should be modified if gynogenesis is introduced.

采用近交和雌核发育方法培育出转pCAgcGHc基因异源四倍体鲫鲤F〓代，通过PCR检测，外源基因pCAgcGHc在近交转pCAgcGHc基因异源四倍体鲫鲤F〓中的整合率为90％，而流式细胞技术检测雌核发育转pCAgcGHc基因异源四倍体鲫鲤F〓的倍性多为二倍体，说明通过近交筛选转基因异源四倍体鲫鲤纯系的方法是可行的，但是通过雌核发育来筛选转基因异源四倍体鲫鲤纯系还要就方法上进一步的改进。

Dobzhansky had been influenced by his exposure in the 1920s to the work of a Russian geneticist named Sergei Chetverikov who had looked at the role of recessive genes in maintaining a reservoir of genetic variability in a population before his work was shut down by the rise of Lysenkoism in the Soviet Union.

杜布赞斯基在二十世纪二十年代曾接触俄罗斯遗传学家谢尔盖·契特维里科夫的工作，受到他的影响。契特维里科夫曾经研究隐性基因在群体中保持基因变异库的作用；后来，李森科主义在苏联兴起，他的研究工作被关停。

The present invention relates to a process of producing a functional immunoglobulin superfamily protein, which has at least one disulphide bond when functional, the process comprising the steps of providing a bacterial cell comprising a gene coding for the protein, the gene is expressible in said cell, cultivating the cell under conditions where the gene is expressed, isolating the protein from the cell without reducing it, and subjecting the isolated protein to a folding treatment.

本发明涉及一种产生功能性免疫球蛋白超家族蛋白的方法，此蛋白质在有功能时具有至少一个二硫键，此方法包括如下步骤：提供一种包含编码此蛋白质的基因且此基因可在其中表达的细菌细胞；在使此基因表达的条件下培养此细胞；从该细胞中分离出此蛋白质而不还原它；以及使分离出的蛋白质经受折叠处理。

In this work, we used the sequences of nuclear genes (ITS, Adh2, Adh3 and Waxy) and cpDNA (trnL-F and matK) to explore the origin of Elymus species and the Y genome, and to reveal the mechanism of the geographical differentiation of the StY-genome Elymus species.

本文通过核基因ITS、Adh和Waxy基因以及叶绿体基因trnL-F和marK的序列分析了披碱草属相关二倍体种的系统发育关系和披碱草属植物的起源。

The HPV positivity amongst the group of women with no cervical abnormality was 43%, while that in women with cervical dysplasia and cervical cancer was 81.2% PCR products from 89 HPV positive cases were genotyped by LiPA, of which 49 cases were single HPV infected concerning 11 different HPV types and the commonest type was HPV-16, occurring in 25(51%) of all single HPV infected cases. The other 40 specimens contained multiple HPV types comprising 16 different HPV types. Although double infections(n=25) prevailed, triple(n=9),quadruple(n=3) and quintuple(n=3) infections were also found. PCR products of four HPV positive cases failed to be classified by LiPA. Sequencing analysis revealed that these 4 cases were HPV-66 which was not included in LiPA probes. Follow-up data of 12 cases confirmed the HPV genotyping results. Conclusion The LiPA for HPV genotyping is easy to perform.

结果 155例妇女子宫颈刮片中HPV DNA检出率为60%，其中在宫颈细胞学检查正常或仅有炎症病变的妇女中HPV DNA阳性率为43%，而在宫颈细胞增生不良或宫颈细胞癌的妇女其阳性率为81.2%。93例HPV阳性的标本中，89例利用LiPA成功地作出了基因分型，其中单独一型HPV感染为49例，涉及11种不同基因型HPV，最常见的型别为HPV 16，占单独感染的51%(25/49)；另40例为不同型别HPV重叠感染，涉及所有16种HPV基因型别，二重感染占主导地位(n=25)，同时也检测出其它多重感染。4例HPV阳性的标本应用LiPA未能作出基因分型，DNA序列分析显示这4例为HPV 66感染，此型别不包括在LiPA所标记的探针内。12例随诊资料显示了LiPA的物异性及高度的重复性。

In this study, we used mRNA Differential Display to analysis the change of gene expression pattern of mouse embryo in the above two stages and the effect of releasing the transcriptionally repressive state on the embryonic development.

为了研究胚胎发育早期基因表达模式的变化及其生理意义，我们使用mRNA差异显示的方法分析了小鼠胚胎基因组激活初期（1-2细胞胚胎）表达的mRNA及随后在二细胞胚胎中转录呈抑制状态的基因表达产物，并探讨了解除二细胞胚胎中转录抑制状态对胚胎后继发育的影响。

The dynamic changes of the the neuron apoptosis and correlative genes in hippocampus of ACET-groups and twice-ACET-groups suggested that ACET can slower the apoptosis by inhibiting p~(53)and prolong the ascending period of p~(53) in 4 days after the seizure,this effect would weaken after 4 days.ACET may inhibit the descending of Bax,prolong its descending period and then promote its expression,in order to weaken the inhibition of the apoptosis during 4 to 10 days after seizure and then promote the apoptosis during 10 to 14 days after.This effect of ACET can be enhanced after treating again within 7 to 14 days later.

埋线组和二次埋线组大鼠海马神经元凋亡及相关基因表达的动态变化结果提示：埋线治疗在癫痫发作后的早期(4d内)可通过抑制促凋亡基因p~(53)蛋白表达、延缓其达峰值的时程，从而减缓神经元凋亡的发生，此作用在4d后减弱；埋线治疗抑制大鼠海马神经元凋亡的作用在癫痫发作后的中期(4d～10d)减弱，甚至在远期(10d～14d)出现促进凋亡的作用，可能是通过抑制Bax蛋白表达的下降、延长其降至低峰值的时程，促进Bax蛋白表达的回升的结果；在中远期(7d～14d)内予二次埋线治疗对该效应有续效叠加的作用。

Compared to wild-type plants, the onset of flowering was advanced. The results of this study may be useful in the mulberry gene engineering and the results may be helpful to study the regulation of SBPase.Rubisco activase is a soluble chloroplast protein, coded in nucleus, and has the activation of Rubisco in photosynthetic autotrophs.

本研究为桑树基因工程提供了有效的候选基因，为深入研究SBPase的分子调控机制奠定了基础。1，5-二磷酸核酮糖羧化酶活化酶广泛存在于光合生物中，它是一种由核基因编码的叶绿体蛋白，具有调节Rubisco活性的功能。

In order to develop a new path for gene mapping of fish, the digoxigenin and tritium labeled in situ hybridization techniques combined with multiple banding analysis on the pachytene bivalents of M. albus were studied using the wheat ribosomal RNA genes, pig growth hormone gene and MaSoxl (M. albus SRY boxl) DNA segment as the probes. Moreover, the techniques of random primed in situ DNA synthesis were also developed on the bivalents of M.

以两种异源基因和Ma Soxl为探针，采用地高辛或氟标记的原位杂交技术，结合点渍法和DNA印渍法分析，率先在黄鳝减数分裂二价体上开展基因定位研究，并与多重带带型分析相结合，以期为构建黄鳝染色体框架图奠定初步基础，为迅速改变鱼类基因定位研究的落后局面而开辟新的途径。

Zinc diamyl dithiocarbamate antioxidant showed good synergism with antimony diakyl dithiocarbamate antiwear additive in improving the oxidation stability of modified soybean oils. The incipient oxidation temperature and induction period time of genetically modified soybean oils were improved significantly by adding polyalphaolefin and additives, and they were even better than that of the synthetic base oil PAO with the same additive formulation.

结果表明，改性大豆油的不饱和脂肪酸含量越高，其氧化安定性越差；抗氧剂二戊基二硫代氨基甲酸锌和抗磨剂二烷基二硫代氨基甲酸锑在改性大豆油中均表现出了良好的抗氧协同性能，尤其在基因改性大豆油中，聚-α-烯烃和添加剂的复配使其起始氧化温度和氧化诱导时间均超过了相同配方的聚-α-烯烃油样。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。