In this exper iment,we took the advantage of RNAi technique,microinjected tinman and singless dsRNA into the early embryos in Drosophila respectively and got these two genes' RNAi phenotypes,which were very similar to that of their mutant,showing heart tube defects or no heart precursors formation.tinman dsRNA eve caused visceral mesoderm defects and the somatic muscles disruption,yet wingless dsRNA only affected heart precursors and had no effect on visceral mesoderm and somatic muscles,indicationg that the heart-related genes dsRNA interference worked effectively and exclusively in Drosophila.

實驗運用RNAi技術(shù)www.p2p521.com，分別將tinman和wingless的dsRNA注入果蠅的早期胚胎国产天天在线视频，得到了這兩個基因的dsRNA干擾表型日本h纯肉无遮掩3d动漫，與兩個基因的突變體表型非常相似国产色无码专区视频，都表現(xiàn)為果蠅心臟前體細(xì)胞不能形成或心臟管缺失亚洲日韩精品不卡在线。尤其是tinman基因的dsRNA性色精品福利一区二区，還引起了腸中胚層缺失和體壁肌肉組織的紊亂，而wingless基因的dsRNA卻只影響心臟的形成国产极品在线观看无码迅雷下载，而不影響腸中胚層女人阴道口被插视频，說明dsRNA干擾具有非常強的特異性，因而不失為研究果蠅心臟發(fā)育基因功能的有效方法亚洲黄的全免费在线观看。

Precursors of sulfates and alkali halides prepared in co-deposition process were mixed homogenously, annealed at high temperature and then formed CoO and NiO fibers, XRD, XPS, Raman and SEM were used to characterized the samples, the growth of these fibers might be a special LS mechanism: soluble precursors in molten salt decomposed gradually to form initial crystal nucleus and succeeding particles adhered to these nucleus and grew anisotropically in the special high temperature fluent medium, the higher decomposition temperature and solubility of the precursor are two key factors in this method, which are in favor of a longer growth process and result in larger sizes of the final metal oxides crystals.

以共沉淀方法生成硫酸鹽與堿金屬鹵化物融鹽的均勻混合前驅(qū)物亚洲国产AV无码精品无广告，在高溫下退火制備出了CoO和NiO的晶須，以XRD和XPS等對成份進行了分析国产乱伦视频一区二区，SEM分析了形貌特征黄页视频在线学习，研究了不同前驅(qū)物熱分解特性，認(rèn)為本方法是一種簡單的LS生長機制：可溶性前驅(qū)物于融鹽中熱分解后逐漸析出成核欧美黄色免费网站一区二区，后續(xù)的粒子附著在核上亚洲欧美国产丝袜一区，在融鹽環(huán)境下沿一定方向作準(zhǔn)一維生長，其產(chǎn)物形貌之不同源于硫酸鹽的高分解溫度和在融鹽中的可溶性毛片视频a毛片，導(dǎo)致晶體生長過程中成核過程與生長過程競爭的結(jié)果對一般前驅(qū)物結(jié)果的偏移欧美色一区二区。

Expression of this gene is more efficient, because the enzyme catalyses the three chain elongation reactions starting from the C5 precursors to the C20 molecule.One way to increase the heterologous production is to increase the pool of precursors in the host.

表達(dá)這種基因是更有效率的，因為酶催化的三個鏈伸長反應(yīng)黄片一级二级，從碳五前兆向c20 molecule.one方式久操免费在线观看，以增加外源生產(chǎn)，是增加池體在東道國一级aaaaaa黄片。

Different from the siRNAs or miRNAs, which are derived from double-stranded or short-hairpin RNA precursors, piRNAs are derived from single-stranded RNA precursors or two non-overlapping and divergently transcribed precursors without the involvement of Dicer endonucleases.

與來自于雙鏈RNA的siRNA和發(fā)卡結(jié)構(gòu)miRNA不同之處是piRNA來自長單鏈RNA前體久久精品女人天堂A片，或者是兩股非重疊的反向轉(zhuǎn)錄前體中文日韩字幕一区二区三区，其生成與Dicer無關(guān)小视频无码专区网。

Sulfide precursors were synthesized by conventional inorganic metal salts and a sulfurizing agent. Sulfide catalysts were prepared by isochoric impregnation using an impregnation solution containing sulfide precursors and a dispersion additive.

以常規(guī)金屬無機鹽及硫化劑為原料合成硫化物前驅(qū)體，在硫化物前驅(qū)體溶液中加入添加劑配成浸漬液综合久久久久久，浸漬載體制成硫化型加氫催化劑国产一级黄色网站在线。

In this paper, some methods of fuzzy mathematics suah as the direct method of fuzzy pattern recognition, the method of fuzzy clustering analysis the method of fuzzy information retrieval, and the recently advanced method of fuzzy fractal dimension have been applied to earthquake monitoring and prediction in the Surrounding Capital Area based on the seismicity and earthquake precursors. The seismic and unseismic precursors before both the Tangshan M=7.8 great earthquake in July, 1976 and the Datong-yanggao M...

本文把模糊數(shù)學(xué)中的模糊模式識別的直接方法、模糊聚類分析方法、模糊信息檢索方法和新近提出的模糊分維方法應(yīng)用到以地震活動性和地震前兆為基礎(chǔ)的首都圈地震監(jiān)測預(yù)報當(dāng)中免费囯产黄片无级A，分析研究了發(fā)生在這一地區(qū)的兩次大地震男人女人天堂视频一区,二区,三区，即1976年唐山7.8級和1989年大同6.1級地震前用模糊數(shù)學(xué)方法識別出的地震學(xué)前兆和非地震學(xué)前兆，并對這一地區(qū)大地震的長期和中短期模糊預(yù)報方法與途徑進行了簡要的討論__级黄色视频。

Alkylbenzene, normal alkanes and alkylcyclohexane on the pyrolysates of P. Boryanum at 300℃ had uniform distribution and the relative content of them was similar, indicating that they originated from same precursors. Fatty acids, alcohol and ketone in algal cell are the possible precursors. For example, the precursor of relatively abundant C〓 alkylbenzene and alkylbenzene with C〓 side chain perhaps related with palmitic acid. N-alkylnaphthalene in pyrolysates at 300℃ probably derived from alkylation of cleavage products of aromatic steranes and terpanes.

在盤星藻300℃熱解產(chǎn)物中久久久久人妻一道无码AV，烷基苯、正烷烴和烷基環(huán)己烷碳數(shù)分布一致网站视频黄色亚洲、各化合物的相對含量接近一级二级三级毛片，表明它們有相同的來源，藻類體內(nèi)的脂肪酸狼友线观看免费观看、醇和酮及細(xì)胞壁等物質(zhì)可能是其母質(zhì)免费一级a片免费网站，相對含量較高的碳數(shù)為16及側(cè)鏈碳數(shù)為16的烷基苯類化合物，其前身物可能與軟脂酸有關(guān)久久精品视频96。300℃熱解產(chǎn)物中的正烷基萘類化合物网上可看的欧美日皮大片网站，可能由芳香甾、萜類的降解產(chǎn)物與直鏈烴類加成烷基化而形成A女人黄色网站。

Axonal degeneration similar to that observed in KIF 1A mutants has also been reported for several neurodegenerative diseases such as senile dementia and most recently Charcot-Marie-Tooth disease type 2A by another synaptic vesicle precursors transporter KIF1B knockout mice. In some neurodegenerative diseases, neuronal cell death caused by defects in the transport of synaptic vesicle precursors by KIF1A may be involved.

和KIF1A基因剔除鼠相似的軸突變性在一些神經(jīng)退行性疾病如老年性癡呆的研究中也有發(fā)現(xiàn)亚洲中文字幕在线第一页，特別是最近，與KIF1A一樣運輸突觸小泡前體的KIF1B基因剔除鼠與Charcot-Marie-Tooth二型疾病的關(guān)系一区,二区,三区乱淫视频，更提示了KIF1A基因的功能缺失国产交换3p国产精品，與神經(jīng)退行性病變及神經(jīng)元死亡的發(fā)生有不可分割的關(guān)系。

The largest CoQ10 concentration, which was 90.1% higher than in control was obtained only with added solenesol. When both Side-chain and ubiquinone circle precursors were added, CoQ10 concentration became lower than that of when one of precursors was added.

結(jié)果表明欧美一级精品视频，單獨添加茄尼醇能達(dá)到最大產(chǎn)量33.1mg/L黄色真人免费网站，比對照樣品增加了91%，任2種前體物質(zhì)共同添加都要比單獨添加茄尼醇時產(chǎn)量低www.色色色网。

Optimization of precursors and elicitors for taxol production by cell suspension culture of Taxus chinensis;2. The effects of side-chain precursor-Solanesol, ubiquinone cicle precursors-phydroxybenzoic acid, and coenzyme Q_0 on biosynthesis of coenzyme Q_(10) were studied.

首次研究了以輔酶Q10 (CoQ10 )主要側(cè)鏈供給前體物質(zhì)———茄尼醇和醌環(huán)供給前體———羥基苯甲酸和輔酶Q0 對粟酒裂殖酵母(Schizosaccharomycespromb 2 1794 - 2 3)生產(chǎn)CoQ10 產(chǎn)量的影響大桥未久黄色网站，并對前體的轉(zhuǎn)化工藝進行了初步研究。