| 单词 | 突变 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔Ames test〕A test used to determine the mutagenic potential of a substance based on the mutation rate of bacteria that are exposed to the substance.埃米斯测试：一种根据曝露在物质周围的细菌的突变率来确定物质基因突变能力的测试美国传统〔CHANGE/NOT CHANGE〕His sudden switches of mood are difficult to deal with. 他情绪突变，很难对付。朗文写作活用〔CHANGE/NOT CHANGE〕There was a sudden change in the weather. 天气突变。朗文写作活用〔CONFUSED〕His sudden change in mood completely confused her. 他情绪上的突变使她大惑不解。朗文写作活用〔SUDDENLY〕Depression is sometimes brought on by a sudden change in your life. 忧郁症有时候是生活中的一场突变导致的。朗文写作活用〔aberration〕Changes in chromosome structure are called chromosomal mutations or aberrations.染色体结构的改变称为染色体突变或畸变。英汉大词典〔abrupt〕There was an abrupt change in the weather.天气突变。韦氏高阶〔absent〕Absent some catastrophe, the food prices should soon drop.没有什么突变的话，食品价格应该很快会有所下降。21世纪英汉〔back mutation〕A reversal process whereby a gene that has undergone mutation returns to its previous state.回复突变：已经过变种的基因转回到它原来的状态的一个逆向过程美国传统〔bargain〕We hadn't bargained for this sudden change in the weather.我们没有预料到这样的天气突变。牛津高阶〔bewilder〕She was totally bewildered by his sudden change of mood.他的情绪突变搞得她全然不知所措。牛津高阶〔break〕A sudden or marked change.突变美国传统〔cacophony〕The use of harsh or discordant sounds in literary composition, as for poetic effect.突变音：文艺创作中为获得诗意效果而运用的刺耳的或不和谐的声音美国传统〔coup de théâtre〕A sudden, dramatic turn of events in a play.剧情的突变：戏剧事件中的突然的一戏剧性的转变美国传统〔coup de théâtre〕An unexpected and sensational event, especially one that reverses or negates a prevailing situation.戏剧性突变：一个出人意料、耸人听闻的事件，尤指与前情相悖或否定的事件美国传统〔coup de théâtre〕There's a brilliant coup de théâtre at the end of the play.这部戏剧结尾的时候有一个精彩的剧情突变。剑桥高阶〔coup〕She lost her position in a boardroom coup (= a sudden change of power in a company).她在董事会的人事突变中失去了职位。牛津搭配〔coup〕She lost her position in a boardroom coup(= a sudden change of power among senior managers in a company).她在董事会的人事突变中失去了职位。牛津高阶〔crack〕To change sharply in pitch or timbre, as from hoarseness or emotion. Used of the voice.嗓音发劈：由于声音嘶哑或情绪激动而造成的音高或音质的突变。用于指嗓音美国传统〔discontinuity〕Geology A surface at which seismic wave velocities change.【地质学】 不连续面：间断面，地震波速度突变面美国传统〔disintegrate〕Chemistry Physics To decompose, decay, or undergo a nuclear transformation.【化学】 【物理学】 （核的）蜕变；衰变：分解、衰变或经历原子核的突变美国传统〔dissociate〕Biology To mutate or change morphologically, often reversibly.【生物学】 突变，变异：经受突变或形态上的改变，常为可逆地美国传统〔dissociation〕Biology The process by which some microbes differentiate or mutate.【生物学】 离异，分离变异：一些微生物变异或经历突变的过程美国传统〔fillip〕A snap or light blow made by pressing a fingertip against the thumb and suddenly releasing it.弹指，轻击：用一指尖压于拇指之下，然后突然松开的突变或轻轻一击美国传统〔friction〕The friction between us was becoming evident.我们之间的冲突变得明显了。外研社新世纪〔gene〕Gene mutations are alterations in the DNA code.基因突变是指 DNA 密码的改变。牛津搭配〔genotoxin〕A chemical or other agent that damages cellular DNA, resulting in mutations or cancer.基因毒素：损害细胞脱氧核糖核酸的化学制剂或其它制剂，会引发突变或癌症美国传统〔hair-trigger〕A hair-trigger situation has been created which could lead to an outbreak of war at any time.局势风云突变, 战争一触即发。外研社新世纪〔hair-trigger〕A hair-trigger situation has been created which could lead to an outbreak of war at any time.局势风云突变，战争一触即发。柯林斯高阶〔insertion〕Genetics The addition, as by mutation, of one or more nucleotides to a chromosome.【遗传学】 染色体突增：由于突变而使染色体增加一个或多个核苷酸美国传统〔invasion〕If there is mutation of the cell's DNA, the scene is set for invasion by malignant cancerous cells.如果细胞的DNA发生突变, 就很容易引发癌细胞的扩散。外研社新世纪〔jump〕A sudden or major transition, as from one career or subject to another.突变，大变：突然或重大的转变，如从一个职业或一个主题转到其他美国传统〔luck〕Perhaps your luck will change and you'll meet someone really nice.运气突变麦克米伦高阶〔miscode〕The mutant DNＡ miscoded a single amino acid.突变体脱氧核糖核酸误编了一个氨基酸密码。21世纪英汉〔missense mutation〕A mutation that changes a codon for one amino acid into a codon for a different amino acid.错义突变：将一种氨基酸的密码子变成另一种不同氨基酸的密码子的突变美国传统〔missense〕A section within a strand of messenger RNA containing a codon altered through mutation so that it codes for a different amino acid.错义：一个RNA螺旋体中包含的一个因突变而改变密码子的部分，它能编码成为另一种不同的氨基酸美国传统〔mutagen〕An agent, such as ultraviolet light or a radioactive element, that can induce or increase the frequency of mutation in an organism.诱变剂：有机体中的一种可诱发或者增加突变的次数的因子，如紫外线或放射性元素美国传统〔mutant〕An individual, an organism, or a new genetic character arising or resulting from mutation.突变体：由突变而产生的一种新个体、新有机体或者新种美国传统〔mutant〕The overwhelming majority of these mutant genes are harmful to the organisms in which they arise.这些突变基因中的绝大多数会对所在的有机体有害。外研社新世纪〔mutant〕These mutants lack a vital protein which gives them immunity to the disease.这些突变体缺乏一种可以抵抗这种疾病的重要蛋白质。剑桥高阶〔mutant〕This mutant gene is thought to cause cancer.人们认为这种突变基因会致癌。剑桥高阶〔mutate〕Simple organisms like bacteria mutate rapidly.像细菌那样的简单有机体突变的速度很快。朗文当代〔mutate〕The cells mutated.细胞突变了。韦氏高阶〔mutate〕The genes are mutated by irradiation or chemicals.基因会因为放射或化学药物而发生突变。外研社新世纪〔mutation〕A mutant.突变体美国传统〔mutation〕A sudden structural change within a gene or chromosome of an organism resulting in the creation of a new character or trait not found in the parental type.突变，变种：生物体的基因或者染色体的突变，产生一种父代所没有的新的特征或者特性美国传统〔mutation〕Environmental pressures encourage genes with certain mutations to persist and others to die out.环境的影响使发生了某些突变的基因存活下来，另一些则消亡了。剑桥高阶〔mutation〕It is well known that radiation can cause mutation.众所周知，辐射可能造成基因突变。剑桥高阶〔mutation〕Scientists have found a genetic mutation that appears to be the cause of Huntington's disease.科学家们已经发现一种可能引起亨廷顿舞蹈病的基因突变。外研社新世纪〔mutation〕The condition is caused by a genetic mutation.这种情况是由基因突变引起的。韦氏高阶〔mutation〕The genetic material has suffered a mutation.这种基因材料发生了突变。牛津搭配〔muton〕The smallest unit of DNA at which a mutation can occur; a nucleotide.突变子：能够产生巨变的脱氧核糖核酸的最小单位；一个核苷酸美国传统〔overnight〕The situation changed overnight.形势突变。英汉大词典〔peripeteia〕A sudden change of events or reversal of circumstances, especially in a literary work.突变：事情或环境的突然变化，尤指在文学作品中美国传统〔peripety〕Peripeteia.突变美国传统〔pleiotropic〕The mutation was pleiotropic.这突变是多向性的。英汉大词典〔point mutation〕A mutation that affects only one or a few nucleotides in a gene.基因点突变：在一个基因中，只影响一个或几个核苷酸的突变美国传统〔rapid〕The 1990s were a period of rapid change/growth.20世纪90年代是一个迅猛突变／发展的时期。剑桥高阶〔react〕He did not know how to react to her sudden mood swings.他不知道如何应对她的情绪突变。牛津搭配〔reversion〕Genetics A return to the normal phenotype, usually by a second mutation.【遗传学】 返祖遗传：向正常表现型的返回，通常是通过第二次突变美国传统〔revertant〕A revertant organism, cell, or strain.回复突变等位基因：回复突变的有机体、细胞或品系美国传统〔revert〕This creature has reverted permanently to the aquatic life of its ancestors.这种生物经回复突变已像祖先那样永久在水中生活了。英汉大词典〔saltation〕Genetics A single mutation that drastically alters the phenotype.【遗传学】 突变：大规模改变表现型的一个突变美国传统〔shock〕Unfortunately, it's the poor who are most vulnerable to this kind of economic shock.不幸的是，面对这种经济突变，穷人的承受力最低。韦氏高阶〔sport〕Biology An organism that shows a marked change from the normal type or parent stock, typically as a result of mutation.【生物学】 成熟突变体：显示从正常情况或母体原状发生显著变化的有机体，典型的是成熟之后的结果美国传统〔suppressor〕A gene that suppresses the phenotypic expression of another gene, especially of a mutant gene. 抑制基因：抑制另一基因存在，尤指突变基因美国传统〔survival〕In rare cases, a mutation confers a survival advantage to the organism.在极少数情况下，基因突变会给生物带来生存优势。牛津搭配〔switcheroo〕An unexpected variation or reversal.突变，逆变：意想不到的变化或完全相反的结果美国传统〔transversion〕A point mutation in which a purine is replaced by a pyrimidine, or a pyrimidine is replaced by a purine.转置点，易位点：用嘧啶代替嘌呤或用嘌呤代替嘧啶的点突变美国传统〔turn〕The President was stunned by the sudden turn of events .总统对事态的突变感到非常震惊。朗文当代〔twist〕This is the final tragic twist in a long story.这是长篇故事最后的悲剧性突变。麦克米伦高阶〔twitch〕Economists are studying every twitch and hiccup of the business cycle.经济学家们正在对商业周期的每一个突变和停顿做研究。韦氏高阶〔unsettle〕Such a sudden change will unsettle her.这种突变会使她焦虑不安。韦氏高阶〔unsteady〕He was unsteadied by the sudden turn of events.形势的突变使他情绪波动。英汉大词典〔vagary〕I take an assortment of clothes on holiday, as a provision against the vagaries of the weather.我带了各种衣服去度假，以防天气突变。柯林斯高阶〔watch for〕We need to watch for any sudden changes in his heartbeat.我们要留意他心跳的任何突变。韦氏高阶〔wind〕The wind suddenly changed and began blowing from the north.风向突变，开始刮北风了。牛津搭配A lot of people were caught out by the sudden change in the weather.许多人因为天气突变而陷入困境。剑桥国际As for the pink form of the plant, the original mutation was found in England and its cuttings have spread across the world.至于这种植物的粉红品种，最早的突变体在英国被发现，现在它的插枝已遍布全世界。剑桥国际Environmental pressures encourage genes with certain mutations to persist and others to die out.环境的影响使突变的基因存留而其它的消亡。剑桥国际He's at that age when his voice is breaking (= changing from a boy's to a man's).他已经到了嗓音发生粗浑突变的年龄了。剑桥国际It is well-known that radiation can cause mutation.众所周知，辐射能导致突变。剑桥国际She caught sight of Johnny in the bar and suddenly her whole expression changed.她在酒吧见到强尼时脸色突变。剑桥国际Some people with red-cell mutations such as thalassaemia and sickle cell anaemia inherit an immunity to malaria.有些红细胞突变的人，如地中海式贫血病人和镰状红细胞贫血病人遗传对疟疾的免疫。剑桥国际These bacteria have mutated into forms that are resistant to certain drugs.这些细菌已突变成对某些药物有抵抗力的形态。剑桥国际These mutants lacked a vital block of genetic instructions giving them immunity to the disease.这些突变体缺少使它们对这种疾病有抵抗力的一组重要的基因指令。剑桥国际This giant spider was created out of the mutation of the genes of a normal spider. 这只大蜘蛛是因为普通蜘蛛的基因突变而造成的。译典通This mutant gene is thought to cause cancer.这种突变基因被认为是致癌的。剑桥国际This sudden change in policy was an act of desperation on the part of the government.这项政策突变是政府方的绝望之举。剑桥国际 |
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