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

• Oncogenes are sometimes produced as a result of a mutation in one or more of these genes.
  癌基因有时产生于这些基因中的一个或多个突变。
• Still unclear is what genetic mutation or mutations lead to these malfunctions.
  什么基因的突变或突变导致的这些机能障碍仍不清楚。
• Chromosome mutation A change in the number or arrangement of genes in a chromosome.
  染色体突变：生物细胞中染色体数目的增减和结构的改变。
• The result is a strain of mice with a mutation that mimics the one that occurs in human leukemia.
  结果得到具有与发生在人类白血病中的突变相像的基因突变小鼠系。
• 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。
• 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。
• 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。
• 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。
• In this paper, the mutation screening methods and phytase applications are reviewed in recent years.
  本文对近年来植酸酶的诱变筛选方法和植酸酶应用两方面的内容进行综述。
• They have found mutation routes that are of more immediate practical and clinical value than knowing the whole genome.
  他们已发现突变通路，这比认识整个基因组更有直接的实践和临床价值。