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

• Suspension cultures maintained for long periods may alter in properties due to mutation and altered gene expression.
  悬浮培养长期保存会由于突变和基因表达的改变而改变性状。
• 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。
• Conclusion Homotropic inheritance is existed, genetic changes was not only acquired by mutation.
  结论获得性遗传是存在的，基因的改变不仅仅是通过突变一种途径实现的。
• And I pointed out that lists are mutable, showed you some examples of mutation.
  我提到了数组是可变的，并给你们举了一些例子。
• Objective To explore the tk gene mutation spectrum in spontaneous and induced WTK1 mutants.
  目的探讨WTK1细胞tk位点自发和诱发突变体的突变谱和突变热点。
• 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 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。
• Conclusion The low expression and mutation of PTEN gene probably promote the occurrence and development of glioma.
  结论：PTEN基因低表达及基因突变可能对胶质瘤发生、发展有促进作用。
• The occurrence mechanisms on cancer including mutation of oncogene and antioncogene, effect of environmental factors were reviewed.
  根据近年的研究进展，从癌基因与抑癌基因的突变及环境因素的影响等方面综述了癌症的发生机理。
• Financial history is essentially the result of institutional mutation and natural selection.
  金融史实质上就是制度突变和自然选择的结果。