| 释义 |
mutations 英mjuː'teɪʃnz美mjuː'teɪʃnz COCA¹⁹¹⁹⁰BNC¹⁰⁷⁶⁵Economist¹⁰⁴¹¹
基本英英例句例句
突变¹⁰⁰原型mutation的复数
名词 mutation:
biology an organism that has characteristics resulting from chromosomal alterationgenetics any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organisma change or alteration in form or qualitiesThe capsules were examined for geneticmutations.这些胶囊用于检测基因突变。
Most of thesemutationsare harmless.大部分的基因突变是没有害处的。 In nature, he points out, the vast majority of mutations are either harmful or neutral to organisms, and a virus must replicate10,20 or even100 times for drug resistance to evolve.
他指出，实际上对生物体来说绝大多数的变异不是有害的就是中性的，并且一种病毒必须复制10次或20次甚至100次才能具备耐药性。 yeeyan
The interesting question is which mutations affecting our bodies or behaviour have spread because of drift rather than selection, but this is far from clear.
一个有趣的问题是哪些影响我们的身体或者行为的变异已经传播开了，因为漂变而不是自然选择，要搞清楚它还有很长的路要走。 yeeyan
The lethality can vary from country to country, depending on viral mutations, how prepared each country is, what other diseases its population has, and other factors.
致命性是因国而异的，取决于病毒的突变，每个国家是如何准备的，其他疾病的人口数量有多少，和其他因素。 yeeyan
The main obstacle is a series of five seemingly inconsequential mutations that function like a ratchet in a cog system, allowing motion forward but not back.
主要的障碍是一连串五个看似无关紧要的突变，就像一个齿轮系统中的一个棘轮的功能一样，随着运动向前，从不倒退。 yeeyan
Because the condition occurs in response to environmental influences rather than genetic mutations, this snake is not a “ mutant”, but merely a“ freak”.
由于出现这种状况是适应环境影响而非遗传变异，所以，这种蛇就不是“突变体” ，而只是一个“畸形生物”。 yeeyan
But he argues that the number is likely to be large because the type of complex interactions between mutations that caused irreversibility in the evolution of the cortisol receptor are common.
但他坚持认为这样的蛋白质数目可能会很多，因为在皮质醇受体的进化过程中，导致不可改变性的突变之间复杂的相互作用的形式比比皆是。 yeeyan
But if all individuals of a species go without sex, over time harmful mutations build up and the species can go extinct.
不过如果所有个体都没有性活动来交换基因，有害的基因突变积累的结果就是物种灭绝。 yeeyan
But scientists have yet to figure out what causes the mutations, when they will occur and what makes certain viruses more lethal than others.
但科学家迄今尚未找出突变原因、它们什么时候会发生和为什么某些病毒比其它病毒更致命。 yeeyan
Each version had its own set of mutations that it acquired after the virus had invaded our ancestors.
每个拷贝都具有自己的一套突变，这些突变是病毒感染我们的祖先后形成的。 yeeyan
Further study of South Asians has shown that mutations in two other genes, GNPTG and NAGPA, are found in individuals who stutter, but not in non- stutterers.
对南亚人的进一步研究表明，另两大基因也存在突变—— GNPTG和 NAGPA,在口吃者中发现了这两种基因，而非口吃者中没有。 ecocn
However, so far, geneticists have found only rare gene mutations that contribute to isolated cases of obesity.
但是到现在为止，遗传学者仅发现少量的的基因突变导致肥胖的孤立案例。 yeeyan
However, these minor“ mutations” cannot change what the virus does, only what it looks like.
尽管如此，这些小型的“突变”并不能改变病毒的行为，而仅仅是它的外表。 yeeyan
Many mutations do not alter any important features of the virus or the illness it causes.
许多变异不改变任何病毒的重要特性或它所能导致的疾病。 yeeyan
Really bad mutations tend to disappear, because the people who have them frequently don't live long enough to pass them on.
那些真正有害的突变有消失的趋向，因为有这样突变的人常常不能活足够的时间让它们继续遗传。 yeeyan
Scientists have found that each human being has around60 different mutations in their genes.
科学家们发现，每个人体当中大概存在着有60组变异的基因。 ebigear
Sequencing of all eight gene segments found no evidence of genetic reassortment with human or pig influenza viruses and no evidence of significant mutations.
所有八个基因片断的排序未发现证据表明与人或猪的流感病毒发生基因重组，也无证据表明发生显著突变。 who
That's because, if the original protein set was the same for all creatures, a relatively small number of mutations would have been needed to arrive at the modern proteins, he said.
这是因为，如果原始的蛋白质的集合对于所有的生物都是一样的话，那么只需要相对少量的突变就可以成为现代的蛋白质，他说。 yeeyan
The five key mutations could not be reversed first, because the receptor would be rendered useless.
这五个关键突变不能被先逆转回去，因为这样的话受体就会变得无用。 yeeyan
The mutations in these genes can increase the risk for other kinds of cancer, including cancer of the cervix, uterus and pancreas.
这两种基因的突变会增加患有其他癌症的风险，包括子宫颈癌，子宫癌和胰腺癌。 tingvoa
These people may well have genes that protect them from the dangers of carcinogens or the random mutations that crop up naturally when cells divide.
这些人可能很好的拥有保护其免遭致癌物质或细胞分裂时自然突发的随机突变危险的基因。 yeeyan
These mutations, which occurred after the protein evolved its new function to bind to cortisol, would cause structural clashes within the protein if it were returned to its ancestral state.
在蛋白质进化到具有与皮质醇结合的新功能后产生的这些突变，如果蛋白质返回到原始状态，会导致其结构上产生冲突。 yeeyan
They showed that in one family,92 per cent of the child's mutations came from the father, while in another it was just36 per cent.
据研究结果显示，在受测家庭的一组中，孩子所出现的92%的变异基因来自于父亲，然而在另一个家庭中，这一数据则仅为36%。 ebigear
Those mutations happen all the time.
这样的突变时刻都在发生。 yeeyan
Virus from one of the patients shows mutations at the receptor- binding site.
来自患者之一的病毒显示在受体结合部位突变。 who
Mutations in genes governing cell growth and death can affect the anatomy of a region of cortex.
管理细胞生长和死亡的基因突变可以影响大脑皮质区的解剖学特征。 yeeyan
Mutations in these genes could disrupt normal gene regulation and potentially affect the function of many other genes.
这些基因的变异能够扰乱正常基因调控并可能影响许多其他基因的功能。 yeeyan |