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- AIthough the 359 bp fragment probe spans the sequence encoding the proteolytic clea-vage site of the Fo protein,it could not differentiate the genome RNA of virulentstrain from the one of avirulent strain. 试验结果表明:尽管该探钎含有编码Fo蛋白酶切位点序列的碱基顺序,但它还是不能把NDV的强、弱毒株区分开。
- The Antivirus Mechanism of Avirulent Strain CMV S52 毒疫苗CMV-S52的抗病毒机理
- This strain of wheat can grow during a cold spring. 这种小麦可以在寒冷的春天生长。
- A test of using RT-PCR means to distinguish the virulent and avirulent strains of NDV RT-PCR法快速鉴别新城疫强弱毒株的试验
- Rapid molecular differentiation of virulent and avirulent strains of Newcastle disease virus with RT-PCR technique 用反转录-聚合酶链反应快速鉴别新城疫病毒
- Differentiation of Virulent and Avirulent Strains of New Castle Disease Virus in Shandong Province by RT-PCR and Virology Method 应用RT-PCR和病毒学方法诊断山东省鸡新城疫感染的比较研究
- Isolation and Identification of Natural Avirulent Strain of Newcastle Disease Virus from Goose 鹅源新城疫病毒自然弱毒株的分离与鉴定
- New strains of viruses appear periodically. 新菌系的细菌周期性地产生。
- He finally break down under the four-hour's strain. 在四小时的压力下他终于支持不了。
- virulent and avirulent strains 强弱毒株
- Paying all the bills is a strain on my resources. 支付所有这些费用是我经济上的一大负担。
- Her speech continued in the same dismal strain. 她以悲伤的语调接著往下说。
- avirulent strains 无致病力菌株
- Could you stand the strain? Oh, that's nothing. 这样累你受得了吗?这没什么。
- He broke under the strain of heavy work. 他在繁重工作的压力之下累坏了。
- There's a strain of madness in the family. 那一家人都有点疯疯颠颠的。
- He was breaking up under the strain. 他劳累过度,身体逐渐衰弱。
- The official was warned not to strain his power. 那个官员受到警告,不可滥用职权。
- He pitched his story in a sentimental strain. 他把故事写得带有伤感情调。
- Beg H online little game wants avirulent ah! ! 求H在线小游戏要无毒的啊!!