查询词典 mutation

The mutation of anther morphology might come from akind of structure evolution suiting for inhibiting selfing.

推测花药形态的这种变异可能是防止自交促进杂交的一种进化结构上的适应性状。

A dwarf mutation 99CDAM with plant height about 85 cm was discovered from a Brassica napus line which had selfed for many years. 99CDAM has good characters of early flowering and rich branches, as well as better yield and quality traits, which can be inherited stably, so 99CDAM has important value in Brassica napus breeding.

在甘蓝型油菜自交多代品系中发现了一个株高85cm左右的矮秆突变株99CDAM，该突变株具有开花早、分枝多等优良特性，产量性状和品质性状较好，各性状都能稳定遗传，具有重要的育种价值。

The genetic study suggested that the carbendazim-resistance in these mutants could be steadily inherited by asexual and selfed reproduction, and the resistance was controlled by the same single major gene both in laboratory mutants and field resistant isolates, the different levels of resistance or the same resistant level in different strains maybe conferred by mutations at different sites or one site with different allelic mutations. The gene compensates for the sensitivity to MDPC was allelic to that governs the carbendazim resistance, but the mutation for increasing sensitivity to MDPC in this gene could get the pathogen highly resistant to carbendazim.

抗药性遗传研究表明，在所研究的抗药突变体中，抗药性在自交和无性繁殖后代中能稳定遗传；室內抗药突变体和田间抗药菌株对多菌灵的抗药性由同一个主效基因控制，但它们发生突变的位点不同或者同一碱基位点发生了不同的突变；对MDPC的敏感性也是由单个基因控制的，该基因与控制多菌灵抗性的基因是等位基因，当该基因发生对MDPC的敏感性增加的突变时会使病菌对多菌灵产生高水平抗性。

Dr. Sawyers, another CML expert said that it can take a low level mutation as much as 5 years to show up and proliferate and this connects up to Dr. Druker's observation that the coast is clear after 5 years in CCR.

另一位 CML 专家 Sawyers 医生说，低水平上的基因突变可能发展缓慢，也许会用5年的时间显露出来并发生繁殖，这也和 Druker 医生说的持续取得5年 CCR 之后才确保安全是一致的。

The rationals of anti-angiogenesis are the following: the therapeutic target is tumor endothelial cells which are more genetically stable, more homogeneous, and with lower mutation rate; the anti-angiogenesis drugs can contact endothelial cells directly, with higher potency and lower drug barriers and side effects; the aim of anti-angiogenesis therapy is to block the oxygen and nutrition supply from vessels, instead of killing tumor r ells per se; the aim of anti-angiogenesis is to reduce tumor size instead of eradicate tumor which are different from traditional chemotherapy.

使用抗血管新生疗法根据的理论基础为以肿瘤血管的内皮细胞为治疗药物的攻击标的；肿瘤血管的内皮细胞基因比较稳定、同质性高、而且突变率低；投与的药物可以直接接触内皮细胞，减少投与药物屏障，因此增加有效投与药物的能力及减少药物副作用；以截断供应肿瘤氧气养分的血管为目标：以减小肿瘤的体积大小为目的，与传统化学疗法以根除肿瘤的目标不同。

The studies establish that just about 40% out of 20 cancerous prostates detached from patients with certain genetic mutation had the virus.

研究证明只有约40%的20例前列腺癌脱离患者的某些基因的突变有这种病毒。

The studies establish that just about 40% out of 20 cancerous prostates detached from patients with certain genetic mutation had the virus.

研究证明只有约40%的20例前列腺癌脱离患者有一定的遗传突变病毒。

When parameters of induction power source periodic current, position of steel plate beside the induction heater, etc confirmed, induction heating time, solder quantity, etc parameters changed, the mutation of the welding quality was researched.

确定感应电源振荡电流、钢板与感应加热器的距离等参数，试验研究感应加热时间、钎料量等参数对钎焊接头质量的影响。

Result Because of comprehensive space mutation, the characters of their progenies were s...

结论本研究为返回式卫星搭载处理的空间诱变育种提供了一个新的佐证，表明它是农作物育种的一条有效新途径。

Approximately 75% of individuals with Marfan syndrome have an affected parent; approximately 25% of probands with Marfan syndrome have a de novo mutation.

大约75％的马凡综合征患者有一个患病父母；大约25％的马凡综合征先证者发生了新生的突变。

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。