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- Conclusion Two cases of epidermolytic hyperkeratosis ichthyosis may result from spontaneous mutation. 结论2例表皮松解性角化过度鱼鳞病可能由自发突变引起。
- An anti-bacteriophage engineering Escherichia coli was directly selected from the ferment lysate by spontaneous mutation. 应用自发突变的原理成功地从溶菌液中筛选到抗噬菌体的工程菌株;
- C.He and Salvador Luria independently demonstrated the occurrence of spontaneous mutation in both bacteriophages and hosts. 他和卢里亚分别证明了噬菌体及其寄主中的自发突变。
- Part of these changes are due to antigenic drift,alterations caused by spontaneous mutation,producing minor changes in the antigenic structure of hemagglutinin. 抗原漂流为血凝素抗原结构微小变异 ,抗原突变为病毒在自然界进行基因重组。
- The breeding means of entomogenous fungi includes spontaneous mutation, artificial mutation, parasexual reproduction, protoplast fusion and gene engineering. 目前虫生真菌的育种工作主要采用自然选育、人工诱变、准性生殖、原生质体技术、基因工程技术等方法获得优良菌株。
- Results of Ames test showed that number of colony with back mutation(revertants)in varied strains of Salmonella typhimurium at different doses did not exceed the double of the number of those with spontaneous mutation. Ames实验显示各菌株的各剂量组的回变菌落数均未超过自发回变菌落数的 2倍。
- The study focuses on spontaneous mutations, not inherited gene glitches that are handed down from parent to child. 这项研究重点观察的是自发突变，而不是父母传递给子女的遗传性基因瑕疵。
- The scientists looked for chunks of DNA that were duplicated or deleted. They also checked whether those gene glitches were spontaneous mutations, which weren't passed down from parent to child. 科学家主要是寻找那些复制的或者缺失的DNA片段。他们同时也检查这些基因瑕疵是否是自发突变，而不是从父母传递给子女的。
- He is spontaneous to offer help. 他主动提供帮助。
- Our teacher has mutation of sounds suddenly. 我们的老师突然语音发生了变化。
- Natural, spontaneous verbal utterance. 自然的、朴素的语言发声
- She shows a spontaneous gaiety of manner. 她露出天真愉快的神态。
- Spontaneous and induced mutation occur with animals viruses. 动物病毒的突变有自发突变和诱发突变。
- My husband was handsome, spontaneous and charming in his youth. 我丈夫年轻时英俊、诚挚、富有魅力。
- spontaneous mutation 自发突变,自然突变
- Spontaneous fellowship and sympathy among a number of people. 本能的友情一群人自然产生的友谊和同情
- Hearing the joke, we burst into spontaneous laughter. 听到笑话，我们不由自主地大笑起来。
- spontaneous mutation rate 自发突变率, 自然突变率
- Formation or development of a mutation. 变异的形成或者发展
- To undergo or cause to undergo mutation. 经历变化或使经历变化
