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。
• 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。
• 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。
• 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。
• 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。
• 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。
• 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。
• 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。
• 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。