突變原 的英文怎麼說

中文拼音 [tūbiànyuán]
突變原 英文
mutagen
  • 突 : Ⅰ動詞1 （猛沖） dash forward; shoot out 2 （高於周圍） protrude; bulgeⅡ副詞（突然） abruptly; sud...
  • 原 : Ⅰ形容詞1 （最初的; 原來的） primary; original; former 2 （沒有加工的） unprocessed; raw Ⅱ動詞（原...
  • 突變 : 1 （突然急劇的變化） sudden change; change suddenly; transilience; accident; saltation; revulsion...
  1. The sequence analysis revealed that the as1 gene encodes a myb protein, which is a candidate transcription factor. in as1 and as2 mutants, the polarity formation in leaves is defective. cell differentiation along abaxial - adaxial, proximal - distal and media - lateral axes all shows an insufficient fashion

    通過掃描電鏡、干涉相差顯微鏡、組織切片、過量表達等手段研究了as1和as2的功能，包括觀察觀察突變體的組織、細胞結構及早期發育狀況，同時採用gus表達、 rt - pcr 、原位雜交、 northern等手段分析基因的表達情況。
  2. This paper introduced the application of biotechnology in rice genetics and breeding, including tissue culture, cell mutants selection, protoplast fusion, apomixis, molecular mark assisted breeding and genic transformation

    簡要綜述了生物技術在水稻遺傳育種中的應用，主要包括組織培養、細胞突變體的篩選、原生質體融合、無融合生殖以及分子標記輔助育種和轉基因技術等方面。
  3. Autotrophic mutants were prepared from six different stocks of a special group.

    自養突變體是從一個特別類群的6個不同的原種菌系制備的。
  4. Those researchers identified a mutation in foxp2 as the cause of the dyspraxia

    學者確定foxp2的突變是這種障礙的原因。
  5. The materials in this study were arabidopsis thaliana. ( wt ) and its mutants including ethylene over producer mutant ( eto1 - 1 ), ethylene insensitive root mutant ( eir1 - 1 ) and ethylene insensitive mutant ( etr1 - 3 ). from the phenotypes of 12 - d - old seedlings of arabidopsis wt and mutants, the root gravitropism was obviously enhanced in etol - 1, but diminished in eir1 - 1 and etr1 - 3, compared with wt. the shoot negative gravitropism was also diminished in etiolated seedlings of etr1 - 3

    以擬南芥的eth過量產生型突變體（ etol - 1 ） ，根對eth不敏感型突變體（ eirl - 1 ，地上部對eth響應） ， eth不敏感型突變體（ etrl - 3 ，地上部和根均對eth不敏感）及其野生型（ wt ， columbia生態型）為實驗材料，利用根的向重力性反應為模式，分析了其中eth對auxin效應的調控及其原因。
  6. This article reviews the clinical manifestations, mutation feature, gene location and phenotype of different ischemic cerebrovascular disease caused by monogenic disorders, including coagulation disorders, erythrocytic disorders, inherited small vessel disease, metabolic disorders, connective tissue diseases, vasculopathies and disorders of unknown etiology

    本文主要闡述了單基因遺傳障礙引起的缺血性腦血管病，包括凝血障礙、血細胞病、遺傳性小血管病、代謝障礙、結締組織病、大動脈病及不明原因引起缺血性腦血管病的臨床特徵、突變特點、基因定位及表型等遺傳學研究進展。
  7. Whole cell c2d2 reduction by all four mutants comparing to wild type and ni / v mutant was also detected. the result showed that only single a - gln194 substitution did not perturb the stereospecificity of protonation of c2d2. the above comparing results indicate that in mofe protein ( 1 ) a a - gln190 site and its association with homocitrate are important for the transfer of electron / proton to femoco, while a - his194 site and the homocitrate are independent in h2 evolution

    對四個突變株細胞的c _ 2d _ 2還原特性及還原產物中反式-順式- 1 ， 2 -二氘代乙炔的比例進行了測定並與野生型及nifv突變株相比較，結果表明只有- gln ~ （ 194 ）替換不影響c _ 2d _ 2還原產物中反式-順式- 1 ， 2 -二氘代乙炔的比例，即未改變固氮酶還原c _ 2h _ 2加氫的立體構型的專一性。
  8. Isolation and characterization of nitrate reductase - deficient mutants of dunaliella salina

    杜氏鹽藻硝酸鹽還原酶缺陷型突變株的篩選與鑒定
  9. Isolation and identification of nitrate reductase - deficient mutants of dunaliella salina

    杜氏鹽藻硝酸鹽還原酶缺陷型突變藻株的分離和初步鑒定
  10. Fast algorithms of both discrete and orthonormal wavelet and wavelet packet coefficient are diagrammatized to be introduced. daubechies wavelet is applied to help to discuss the application and test on signal filtering and noise reduction with the principle and threshold implementation ; the basic principle to pickup the fault characteristics is introduced mainly about the relations between the maximum module and signal saltation point and how to characterize the saltation point with lipschitz exponent

    展示了離散正交小波變換的mallat快速演算法和小波包系數分解的快速演算法；重點應用daubeches小波探討了小波變換在信號濾波去噪中的應用和實驗，闡述了其基本原理和通過閾值化處理實現濾波的具體方法；探討了用小波變換進行故障特徵提取的原理，說明了小波變換模極大值和信號突變點之間的關系以及怎樣用李氏指數來表徵突變點的性質。
  11. Pcr method was used to identify candidate ms 188. sequence analysis indicated that a point mutation occurred in the second exon of the atmyb103 gene in male sterile mutant with caa ( gln ) replaced by a stop codon taa

    利用pcr的方法從突變體中擴增atmyb103基因並進行序列分析，結果表明突變體中atmyb103基因第二個外顯子上發生了點突變，由原來編碼谷氨酰胺的caa密碼子突變為終止密碼子taa 。
  12. 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。
  13. In the process of introducing catastrophe theory, i descript its basic principle and combine it with the problem of brittleness at first time

    在介紹突變理論的過程中，筆者對其的基本原理進行了敘述，並首次將其與脆性問題結合起來了。
  14. This paper tries to have some innovations in the following aspects : ( 1 ) the main cause of our tax revenue depending mainly on turnover tax is short of innovation in system ; ( 2 ) it ' s innovation in system to impel the rising of income tax in developed counties, which is a good example for us to learn from in the optimization of our tax structure ; ( 3 ) the main function of turnover and income tax should be separated according to their characters ; ( 4 ) the reforms in turnover and income tax should be taken simultaneously, congenially and complementally, although the former will be more progressive while the later more abrupt ; ( 5 ) the essential function of tax is to raise revenue, but its fair - promoting effect is much more obvious in disbursing than in collecting

    本文力求在以下幾個方面有所創新： （ 1 ）認為我國稅種收入過度依賴流轉稅的主要原因是制度創新力度不夠； （ 2 ）認為制度創新是推動發達國家所得稅從弱到強的主要原因，提出我國稅種結構優化需要在制度上大膽創新； （ 3 ）提出根據各個稅種的特性，流轉稅和所得稅的主要功能應有所分工； （ 4 ）流轉稅和所得稅的改革應雙管齊下，以漸進的方式改革流轉稅，以突變的方式改革所得稅，分工協作，優勢互補； （ 5 ）提出稅收的主要功能是籌集收入，稅收在徵收環節在促進結果公平方面效果甚微，稅收在支出環節更能有效促進結果公平。
  15. In recent years, nonlinear methods have attracted more and more attention and there have been some successful cases, such as median filter, mathematical morphology, etc. as a preferred way to inverstigate nonlinear numerical problems, the continued fractions method can effectively express the gradually changing data or abrupt data, so it is meaningful to study image processing by means of the continued fractions theory and algorithms

    近年來在圖像處理領域，利用非線性方法進行圖像處理取得較好效果的有中值濾波、數學形態學等，非線性方法已引起越來越多研究者的重視。作為研究非線性數值問題的首選方法?連分式方法，不僅能反映數據的漸變性，也能反映數據的突變性。鑒于這些原因，本文將連分式插值和逼近引入到數字圖像處理領域，開展了圖像插值、圖像重建等方面的研究。
  16. The principles, operation and applications of site - directed mutagenesis, gene fusion technology, and post - translational modification methods were introduced emphatically

    著重闡述了基因定點突變技術、基因融合技術和翻譯修飾技術等新興定點固定化技術的原理、特點和操作。
  17. The theoretical foundations are consisted of the dissipation structure theory, and the science of cooperation and sudden change theory

    現代科學理論基礎：耗散結構理論、協同學原理、突變論。
  18. It will appearing any phenomenon of abnormity before earthpuake. for example, it will appearing especial light in the sky. some animals will change life habit of primary suddenly

    地震前會出現一些異常現象.例如，天空中出現特別的亮光.一些動物突然改變原來的生生活習性
  19. There was worry that a mutation could occur in the disease which would make the disease virulent enough to attack clones hitherto regarded as resistant.

    麻煩的事是病原菌可能發生突變，以致病害變得更厲害，使原來是抗病的無性系也能感染。
  20. The human genome project has already aided scientists in discovering a mutation that causes a deadly type of skin cancer and accelerated the search for genes involved in diabetes, leukemia and childhood eczema

    人類基因工程已經幫助科學家們發現了一種致命皮膚癌的突變原因，並加速了人類對糖尿病，白血病和小孩濕疹的基因研究。
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