染色體突變 的英文怎麼說

中文拼音 [rǎnshǎitǐtūbiàn]
染色體突變 英文
chromosomal mutation
  • 染 : Ⅰ動詞1 （用染料著色）dye 2 （感染） catch [contract] （a disease） 3 （沾染） acquire （a bad hab...
  • 色 : 色名詞[口語] （顏色） colour
  • 體 : 體構詞成分。
  • 突 : Ⅰ動詞1 （猛沖） dash forward; shoot out 2 （高於周圍） protrude; bulgeⅡ副詞（突然） abruptly; sud...
  • 染色體 : [生物學] chromosome染色體疾病 chromosomal disorders; 染色體異常 chromosome abnormality
  • 染色 : dye; dyeing; colouration; tintage; tinging; dyschroia; colouring; colour; [半] decoration染色不足...
  • 突變 : 1 （突然急劇的變化） sudden change; change suddenly; transilience; accident; saltation; revulsion...
  1. 4. engineering dhqase ( arod ) - deficient e. coli mutant with a second copy of the arob gene gene targeting technique was used to disrupt the arod gene in e. coli chromosome. the mutant 31bk was engineered, in which homologous recombination of the arobkanr gene cassette into the arod locus ( arod : : arobkanr ) of the e. coli strain atcc31884 genome utilized the helper plasmid pkd46 with red system. the host cell 31bk lacked catalytic activity of dhqase ( arod ) and had a second copy of the arob gene, so it improved carbon flow into the quinic acid biosynthesis direction

    構建宿主菌基因精確定位突變株31bk （ arod : : arobkan ~ r ）為了改變代謝途徑脫氫奎尼酸（ dhq ）分支點上的代謝流量，使之充分流向目的產物奎尼酸合成方向，利用基因打靶技術構建了31884宿主菌arod基因精確定位插入突變體，使dhq脫水酶（ dhqase ）失活，阻斷了碳代謝流流向芳香氨基酸生成的方向，同時用同源重組的方法將arob基因定位整合入染色體上，解除了限速酶對碳代謝流通過共同途徑到達dhq的阻遏影響，並減輕代謝負擔。
  2. The aglycone, steviol, exhibited greater acute toxicity than stevioside in hamsters but not in rats. steviol was clearly genotoxic after metabolic activation, inducing forward mutations in bacteria and gene mutations and chromosomal aberrations in lung fibroblasts of chinese hamsters

    甜菊醇經過代謝活化后，基因毒性明顯，可引致細菌產生正向突變，以及使中國倉鼠的肺纖維原細胞產生基因突變和染色體變異。
  3. The topics include : structure and function of genes, chromosomes and genomes, biological variation resulting from recombination, mutation, and selection, population genetics, use of genetic methods to analyze protein function, gene regulation and inherited disease

    主題包括：基因、染色體與基因組的結構和功能；來自於基因重組、突變和篩選的生物變異；族群遺傳學；運用遺傳學的方法分析蛋白質的功能，基因的調控和遺傳性疾病。
  4. In the genetic process of reproduction, crossover and mutation of the chromosomes in this method, these operators pr, pc and pm are produced randomly within some space, the scale of population and all kinds of genetic probability are also adjusted randomly so that the diversity individuals of population is ensured. the ga of dynamic population scale passes more information of paternal chromosomes to the offspring, which is beneficial to search the global optimization or quasi - global optimization

    該方法在染色體進行繁殖、交叉、突變的遺傳過程中，在某一范圍內隨機選取p _ r ， p _ c ， p _ m ，動態調整種群規模，保證了種群個體的多樣性；選擇同父本分別進行三種遺傳過程使得父本染色體中有更多的信息傳遞給子代，這有利於搜索全域最優解或準最優解。
  5. Studies of genes related to heart development in drosophila contribute to reveal the mechanisms of human heart development and the congenital heart diseases. to clone and identify new genes that control the heart development, by a way of chemical mutagen, ems, we have established 1, 200 balanced - lethal lines on chromosome 2 and 3. with the screening the 330 stocks with immunochemical method using heart - specific antibody, mab. no. 3, we detected 60 lethal lines showing heart mutant phynotype

    為了克隆和鑒定控制心臟發育的新基因，本研究利用化學誘變劑甲磺酸乙酯大規模地誘變果蠅，並且建立了1200個第二和第三染色體的平衡致死系，利用心臟組織特異抗體mab . no . 3對其中330個品系進行免疫化學方法篩選，觀察到有60個致死系表現出心臟突變表型， 20個品系的心臟突變表型有待進一步證實。
  6. The mutant lines were crossed with deficiency lines on chromosome 2 and 3 respectively, and the genetic sites of 11 stocks have been determined. of them four showed a different phenotype from the known genes that control the heart development

    分別將這些有心臟突變的品系與果蠅第二和第三染色體缺失系雜交，測定了11個品系的遺傳學位點，其中4個品系在遺傳學位點上有別于已經報道的心臟發育控制基因。
  7. Studies on karyotypes wihin clones indicated that all the karyotypes belonged to stebbins ' 3b type. there are different karyotype formulas, polymorphsim of satellite chromosome, variations of chromosomal structure and b - chromosome in clones. chromosomal mutation is important factor of chromosomal structure variations within clones

    無性系內核型研究表明：各無性系的核型類型都屬于st吮七us的m型、核型公式不完全川同、隨體染色體具多忐性，染色體存在結構變異，研究認為造成無性系內核型變異的重要原因是染色體突變。
  8. So the doctors suspected that there might be chromosomal changes and brain damage. however, the tests for these problems showed no signs of abnormality

    原本醫生懷疑小嬰兒也許有染色體突變和大腦損傷的問題，然而經過檢驗后，這些疑慮全都消除了。
  9. Exponential phase cultures of the dr rl strain survive exposure to gamma radiation at doses as high as 5, 000 gy without loss of viability or evidence of dna damage induced mutation. 6000 gy of irradiation will induce approximately 200 dna double - strand breaks in dr chromosomes, but it is still able to reconstruct a functional genome from chromosomal fragments without any mutation

    指數生長期的r1菌株即使在5kgy劑量的-射線照射后，其生長能力也未受影響， 6kgy -射線照射后染色體基因組產生約200個的雙鏈斷裂碎片，但是其基因組dna經修復后沒有引起任何的突變。
  10. In consideration of the defects of conventional ga, an improved ga has been investigated in this paper. the evolution speed and quality of the population are directly influenced by the change of the number of chromosomes in ga and by whether the paternal excellent information is passed to the offspring as much as it can. in regard to the questions existing in ga, an algorithm with dynamic population scale is provided in this paper

    在對模擬電荷配置的程序化實現方面，本文採用智能優化方法? ?遺傳演算法（ ga ） ，不過本文針對傳統ga - csm中遺傳演算法的定種群規模遺傳使得父本染色體的多樣性受到限制及同代非同父本進行繁殖、交叉、突變的遺傳方法可能收斂于局部極小值而得不到全局最優解的問題，對其加以改進，提出了一種新方法? ?變種群規模的遺傳演算法。
  11. The finding of smc proteins is a great breakthrough in the study of higher - order chromosome structure

    因此， smc蛋白的發現是當前研究染色體高級結構變化的分子機制的重要突破。
  12. Chromosome mutation a change in the number or arrangement of genes in a chromosome

    染色體突變：生物細胞中染色體數目的增減和結構的改變。
  13. This means that we don ' t actually need to fix chromosomal mutations at all in order to stop them from killing us : all we need to do is develop a really good cure for cancer

    這意味著，實際上我們完全不必為了阻止它們殺死我們而修理染色體突變：我們需要做的全部事情，是發展一種真正好的方法治愈癌癥。
  14. The mutation will still be embedded in a very long section of the founder ' s version of dna after only one recombination, just as a marked card would still be accompanied by many of the same cards that were around it in its original deck after only one rough cut - and - mix

    經過一次染色體重組后，突變就會位在很長一段和創始者dna相同的區域內，就像在一次粗略洗牌后，帶有標記的那張撲克牌前後仍有很多來自同一副的牌。
  15. And the haplotype that includes the mutated gene will likewise get whittled down with each subsequent recombination

    每一次染色體重組，包含了突變基因的單純型也會越來越短。
  16. Once the list of mutations was winnowed down, the chromosomal regions containing those mutations were resequenced in the tumors and matched to normal dna samples to alidate each mutation

    一旦一系列突變基因被精選出來，腫瘤中包含那些突變基因的染色體區域被重新測序並與正常的dna樣本匹配以確定每一個突變。
  17. The process by which such a sudden structural change occurs, either through an alteration in the nucleotide sequence of the dna coding for a gene or through a change in the physical arrangement of a chromosome

    突變，變種突變發生的過程，是通過基因的脫氧核糖核酸密碼的核苷酸順序的改變或者通過染色體內部的物理重新排列。
  18. The genetic algorithms is by means of the coding technology, application is reproduction, hybridization and the abrupt change and so on the genetic factor, intial stage race make up to chromosome, degree of adapting to analysis, constitute bad the eliminating of superior 、 natural environment of survival of the fittest, come into being out the fresh good race

    摘要遺傳演算法通過編碼技術，運用繁殖、雜交、和突變等遺傳運算元，對染色體組成的初始種群，進行適應度分析，構成優勝劣汰、適者生存的自然環境，產生出新的更加優良的種群。
  19. To detect the patients and carriers of the fragile x syndrome, various analytic methods could be used. one is cytogenetic diagnosis to observe the expression of the fragile site fraxa located at xq27. 3

    對脆x綜合征的診斷，可以通過細胞遺傳學方法觀察分析x染色體相應脆性位點的表達情況，或是通過southern印跡雜交的方法直接分析cgg重復的擴增突變。
  20. The article related research achievenment on the molecular genetics of mental disease and spirits obstruction, expounds the molecular genetics basis and the mechanism of result in mental disease from chromosome aberration, gene mutation, dynamic mutation and genetic heterogeneity, etc

    文章綜述了當前對精神病和精神障礙的分子遺傳學研究成果，從染色體畸變、基因突變、遺傳的異質性等方面闡明精神病發生的復雜的遺傳背景和機制。
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