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

• This can occur through a mutation in the gene's DNA sequence or through deletion of the gene.
  这种缺失可能起源于基因的突变或者通过基因序列的缺失而产生。
• 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 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。
• 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。
• 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。
• 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。
• 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。
• 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。
• 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。
• 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。