double-strand breaks 中文意思是什麼
double-strand breaks
解釋
雙鏈斷裂-
Mms, a kind of dna - damaging agent, predominantly methylates ring nitrogens of pyrine, leading to dna double - strand breaks, point mutation and so on
甲磺酸甲酯（ methylmetbanesulfonate ， mms ）是一種能夠損傷dna的烷化劑，主要使dna嘌呤堿基上的o 、 n甲基化，造成dna雙鏈斷裂、點突變。 -
In this experiment, dna double strand breaks induced by heavy ions in the early period were investigated with atomic force microscopy ( afm )
本實驗旨在用原子力顯微鏡（ afm ）研究重離子輻射后早期的dna雙鏈斷裂。 -
The damage of dna is the most basic and important sector in this process. meanwhile, the double strand breaks ( dsb ) of dna molecule is the primary damage of all biological effectiveness induced by ionizing radiation
Dna的輻射損傷是其中最基本和最關鍵的一環，而dna的雙鏈斷裂（ dsb ）又是輻射引起的各種生物學效應中最重要的原初損傷。 -
By means of the afm made in shanghai aijian co., ltd. and digital instruments co., ltd ( u. s. ), the dna strand and their fragments were observed successfully. 2. by comparison with afm experiments of three categories of ion beams, the result has been observed in qualitatively : in the uniform dose, the higher let heavy ions have caused more double strand breaks than the lower let radiation
通過afm對實驗結果的觀測，可以定性地得知：在同等劑量條件下，高let值的重粒子與低let的射線相比， dna雙鏈斷裂的數目要多一些；在相同let條件下，隨劑量增加dsb的片段變短、數量增加。 -
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。 -
This organism can repair at least 150 double strand breaks of each chromosome induced by ionizing radiation without lethality or mutagenesis within several hours
該菌能在輻照后幾小時內準確無誤地修復每條染色體上至少150多個dna雙鏈斷裂。 -
Hmre11 plays an important role in u937 cellular response to dna double - strand breaks following etoposide
雙鏈斷裂后的修復中發揮重要作用 -
3. dna double strand breaks ( dsbs ) induced by ion beams of gel electrophoresis experiment has shown positive linear with dose, i. e., double strand breaks will increase as the dose increased
分子生物學技術? ?電泳技術分析結果表明，離子輻射造成的dna雙鏈斷裂（ dsb ）與粒子劑量呈線性正相關關系，即隨著粒子劑量值增大， dsb量也逐漸上升。 -
Numerous lesions that include sugar alteration, base damage, and single - and double - strand breaks together with dna - dna crosslinks have been identified in irradiated dna. dna double strand breaks ( dsbs ) are considered as the most important initial damage of all biological effects induced by ionizing radiation
電離輻射可引起dna多種類型的損傷，如堿基損傷、糖基損傷、單鏈和雙鏈斷裂以及dna交聯等，其中雙鏈斷裂（ dsb ）是輻射所致生物效應中最重要的原初損傷。
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