mutation

英 [mjuːˈteɪʃn]

美 [mjuːˈteɪʃn]

n.  (生物物种的)变异，突变; (形式或结构的)转变，改变

复数：mutations　

TOEFLIELTS化学

BNC.6291 / COCA.8622

牛津词典

noun

• （生物物种的）变异，突变
  a process in which the genetic material of a person, a plant or an animal changes in structure when it is passed on to children, etc., causing different physical characteristics to develop; a change of this kind
  1. cells affected by mutation
     受到突变影响的细胞
  2. genetic mutations
     基因变异
• （形式或结构的）转变，改变
  a change in the form or structure of sth
  1. vowel mutation
     元音变化

柯林斯词典

• V-ERG (使)变异;(使)突变
  If an animal or plantmutates, or somethingmutatesit, it develops different characteristics as the result of a change in its genes.
  1. The virus mutates in the carrier's body...
     病毒会在携带者体内发生变异。
  2. A newer anti-HIV drug called pyridinone caused HIV to mutate into a form which could not reproduce or infect new cells...
     一种叫作吡啶酮的新型抗艾滋病药物能促使艾滋病毒变异，使其不能繁殖，也不会再感染新的细胞。
  3. The technique has been to mutate the genes by irradiation or chemicals...
     该技术是通过放射线照射或者使用化学方法使基因变异。
  4. He found evidence of mutated forms of the gene.
     他找到了该基因出现了变异形式的证据。
• VERB 变化;变成
  If somethingmutates intosomething different, it changes into that thing.
  1. Overnight, the gossip begins to mutate into headlines.
     一夜之间，传闻变成了报纸的头条新闻。

英英释义

noun

• a change or alteration in form or qualities
• (genetics) any event that changes genetic structure
  Synonym:genetic mutationchromosomal mutation
• (biology) an organism that has characteristics resulting from chromosomal alteration
  Synonym:mutantvariationsport

双语例句

• Physical mutation is one of the most important and efficient technique in industrial microorganism breeding.
  物理诱变技术是当今工业微生物育种中最重要、最有效的技术之一。
• Aim: To observe how the mutation gene affects life span of inbred strain Yuyi hairless mice.
  目的：通过对豫医无毛小鼠寿命的观察，探讨突变基因对无毛小鼠寿命的影响。
• But you do not forget that half of the Chinese people with the mutation of aldehyde dehydrogenase.
  可您别忘了，中国人一半带有突变的乙醛脱氢酶。
• Scientists say further mutation is required to cause mass deaths, but future evolution of the virus remains unknown.
  在一篇总结了猪流感的已知情况的文章中，科学家说如果要导致大规模死亡，病毒需要进一步变异，但是该病毒未来的进化尚不明了。
• Effect of genetic crossover and mutation on population diversity
  遗传交叉和变异对种群多样性的影响
• The space mutation is a very effective method to develop new peanut germplasms and useful genes.
  太空诱变为开发新的花生种质和有用的基因提供了有效的方法。
• To establish the rate of mutation, the team examined an area of the Y chromosome.
  为了确定基因突变的速率，这个团队对他们Y染色体的某个区域进行了仔细的测定。
• Genetic analysis indicates that ret41 is a single allele recessive mutation.
  经由回交之后的遗传分析结果显示，ret41为单一隐性突变株。
• The mutation of engulfment genes can change the process of apoptosis.
  吞噬基因的突变可以改变凋亡细胞的进程。
• Sickle cell disease is a disorder in which blood cells carry a mutation in hemoglobin.
  镰状细胞贫血病是由于血细胞携带了一种突变的血红蛋白导致的紊乱。