In the study of mutation mechanism, it was found in 6 cases that there were gains and losses of sites due to nucleotide substitution.
在研究突变机制时，发现有6例由于核苷酸的替换引起了限制性位点的增减。
The second mechanism is a more gradual process of adaptive mutation, whereby the capability of the virus to bind to human cells increases during subsequent infections of humans.
第二种机制是一个渐进的适应性变异过程，在这一过程中，伴随人类受到感染，病毒与人体细胞相结合的能力增加了。
The new mathematical results allow calculation of this mechanism when the fitness function and the mutation, recombination and horizontal gene transfer rates are known.
当适应度函数和突变、重组及水平基因转移率已知时，该项新的数学上的结果可以使这一机制运算化。
To explore the mechanism of presenilin mutation causing Alzheimer's disease and to provide the evidence for the prevention and treatment of AD.
探索早老素突变导致AD的机制，为疾病的预防和治疗提供依据。
The material for studies on molecular mechanism of genetic regulation in the course of ovule development and gametophytes forming were mainly from the finding and inducement of mutation.
胚珠发育和雌配子体形成过程中遗传控制分子机理研究的材料主要来源于对突变体的发现和诱导。
The mechanism of this albescent phenomenon was discussed, and regarded that the mutation of temperature sensitive mutant is probably mutually controlled by the nuclear gene and nuclear cytoplasm.
文中对其返白机理进行了讨论，认为该温度敏感型突变体的突变很可能是由核基因或核质互作控制的。
Based on analyzing the mechanism of destabilization of crack in dam, the mutation model is established by use of catastrophe theory, and the criterion of the stability of crack is given.
在研究裂缝失稳机理及特征的基础上，应用突变理论，建立了裂缝的突变模型，并得出裂缝稳定性的判据。
Objective To study the gene mutation in mitochondrial DNA in the patients with mitochondrial encephalomyopathies, and the pathogenic mechanism of mitochondrial encephalomyopathies.
目的探讨线粒体脑肌病患者骨骼肌细胞线粒体DNA基因突变情况及发病机制。
That may be a common physiological mechanism which means organism can control the expression of genes and resist the virus infection, or the DNA mutation induced by during the period of evolution.
在进化上，这可能是生物调控基因表达及抵御病毒侵染或转座子诱导DNA突变的一种共有的生理机制。
To study mechanism of relationship HBV gene mutation in chronic hepatitis B patients with TCM syndrome.
研究慢性乙型肝炎患者HBV前C区基因变异的变化规律与中医证候的相关机制。
Objective To establish TK gene mutation assay using human lymphoblastoid cell line TK6 and to study the genotoxic mechanism of Vinblastine(VBL).
目的建立用人类淋巴母细胞TK 6检测纺锤体毒物——长春花碱的TK基因突变试验方法，同时探讨长春花碱的遗传毒性分子机理。
Conclusions These results can indicate that the spot mutation of ECR1 gene in young patients with malignancy may be related to immunopathological mechanism.
结论这些结果表明，红细胞CR 1基因点突变率升高与免疫发病机理有相关性。
The mechanism of fluoroquinolone-resistance in clinical isolates of staphylococci involved both the mutation of gyrA gene and the cell membrane associated resistance.
多数临床耐药分离株靶位改变和膜耐药双重耐药机制共存。
The study on the mechanism of mutation of living things in space showed that strong radiation in space was the main reasons, and the micro-gravity was another important condition for the mutation.
通过对其诱变机理的研究表明：太空的强辐射是生物发生诱变的主要原因；微重力是重要的辅助条件。
The study on the mechanism of mutation of living things in space showed that strong radiation in space was the main reasons, and the micro-gravity was another important condition for the mutation.
通过对其诱变机理的研究表明：太空的强辐射是生物发生诱变的主要原因；微重力是重要的辅助条件。
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