查询词典 mutation

Genetic analysis shows that antitrypsin deficiency appeared only about 2000 years ago in Northern Germany and was transferred from Scandinavia by the Vikings."The gene has been retained, I think, because it causes inflammation, because in the old days people died because of gastroenteritis," Dr. Lomas told attendees."So my idea is that this mutation was protective — until people started smoking."

基因分析显示抗胰蛋白酵素缺损在约2000年前首见於北德，系由北欧海盗从斯堪的那维亚半岛传播而来；Lomas博士告诉听众，我认为基因被保留，因为它引起发炎、人们在古老年代会死於肠胃炎，所以我的想法是，此一突变是有保护效果的—直到人们开始抽菸为止。

Objective To probe into the situation and significance of p16 gene mutation and methylation in patients with arseniasis caused by coal-burning pollution.

目的 了解抑癌基因p16在燃煤型砷中毒患者中突变及甲基化的情况和意义。

Objective To analyse the mutation types of the NOTCH3 gene with cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy.

目的 分析伴皮质下梗死及白质脑病常染色体显性遗传性脑动脉病的NOTCH3基因突变类型。

Recently,numerous studies proved that each member of secreted aspartyl proteinase have different requirements in temperature and pH,with develop of gene mutation technology further cleared relation between gene expression regulation and organism′s infection sites and state,as well as transcription activation factor effect on expression of each member of secreted aspartyl proteinase.

近年来，大量研究证实了分泌型天冬氨酸蛋白酶各成员对温度、pH值等培养方面有不同的要求，基因突变技术的发展，进一步明确了基因表达调控与机体感染部位、感染状态之间的关系及转录活化因子在蛋白酶各成员表达中的作用。

All these results demonstrate that mutation does not cause substantial influence on the function of prochymosin and pseudochymosin with respect to autocatalytic activation.

这些结果表明突变对凝乳酶原的自我活化功能影响不大。

Objective To detect the mutation of FOXL2 gene in a Chinese pedigree affected by autosomal dominant blepharophimosis-ptosis-epicanthus-inversus syndrome.

目的 确定一个常染色体显性遗传的睑裂狭小综合征家系的致病基因及其突变位点和类型。

Through three-step continual EMS mutation, the adenine autotrophy strain(Ml-3) and the adenine-requiring revertant strain(M2-8) were screened successively, and the resistant strain(M3-20) to ammonium ion variant was further screened.

将MY-1经连续3次EMS诱变，依次选育富含核黄素的腺嘌呤营养缺陷型菌株(M1-3)和腺嘌呤缺陷型的回复突变株(M2-8)。

In general, loss of avirulence on a cultivar with a specified resistance gene may be due to deletion, insertion or point mutation in the avirulence locus, and polymorphism may be observed between virulent and avirulent strains in this locus.

无毒基因的缺失、点突变及转座子的插入，均能造成其功能的丧失。

Mutation of the AZELAIC ACID INDUCED 1 (AZI1) gene, which is induced by azelaic acid, results in the specific loss of systemic immunity triggered by pathogen or azelaic acid and of the priming of SA induction in plants.

可感应壬二酸的壬二酸感应基因(AZI1)的突变，导致了由病原体或植物体中的壬二酸和SA感应起始所触发的特定性丢失。

Are two varieties of species B.oleracea. Cauliflower bobcal gene loses its original function due to its terminated mutation while cabbage BoCAL gene has its complete function.

是芸薹属甘蓝种的两个变种，前者的bobcal基因由于基因的终止突变失去了原有的功能，而后者的BoCAL基因具有完整的生物学功能。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。