mutant strain

A mutant strain of bacteria.

计算机病毒的一种主要特性.

The mutant gene can be identified by PCR and testing enzyme activity of CPY. The mutant strain inheritance and ferment stability is well.

通过对目的基因的扩增和羧肽酶Y酶活检测验证基因敲除情况，并通过传代抗性试验与传代发酵稳定性实验验证突变株遗传稳定性良好。

Mutant strain hens lacking functional OVR are sterile and display severe hyperlipidemia.

OVR发生突变的蛋鸡，不能繁殖，并且具有严重的高脂血症。

Objectives: to study fermentation conditions of chymosin from mutant strain Mucor pusillus.

目的: 研究微小毛霉产凝乳酶的固体发酵条件.

Compared with Ah J-1 strain, outer membrane protein profiles and some biochemical characters of the mutant strain had changed, and some genes of main virulent determinants could not be expressed, such as proteases, amylase, DNase and hemolysin.

与J-1株相比，突变株的外膜蛋白图谱和部分生化特性发生改变；胞外蛋白酶、淀粉酶、DNA酶、溶血素等几种主要毒力因子同时丧失；

Under the instruction of metabolic control theory, the screening of leucine auxotroph was determined as the method of selecting the mutant strain of low-yield fusel oil.

以代谢控制理论为指导，确定以选育亮氨酸营养缺陷型菌株作为初筛方法，选育低产杂醇油啤酒酵母突变菌株。

The United Nations has warned of a possible resurgence of a deadly bird flu virus, H5N1, and the spread in Asia of a new mutant strain.

联合国警告称，H5N1禽流感病毒可能会再次爆发，亚洲甚至可能传播新的突变体菌株。

Selection of the isoleucine induced mutant strain of avermectin producing Streptomyces avermitilis

Avermectin产生菌异亮氨酸诱导变种的选育

The United Nations is warning of a possible resurgence of the deadly bird flu virus, including a mutant strain that is spreading in Asia and elsewhere.

联合国警告说，一种致命的禽流感病毒可能再次引发疫情，包括一个正在亚洲和其它地区蔓延的突变株。