数值效应是明显的:退化地区的鲑鱼数量比原始地区少;然而,栖息地的丧失也有可能减少遗传多样性。
The numerical effect is obvious: there are fewer salmon in degraded regions than in pristine ones; however, habitat loss also has the potential to reduce genetic diversity.
如果同卵双胞胎彼此在疾病方面比异卵双胞胎更相似,那么这种疾病的易感性至少在一定程度上是由遗传造成的。
If identical twins are more similar to each other with respect to an ailment than fraternal twins are, then vulnerability to the disease must be rooted at least in part in heredity.
伯克利加利福尼亚大学森林和遗传学名誉教授威廉·j·利比说:“虽然这不能加以证实,沃纳先生的工作还是非常令人印象深刻的。”
And while that could not be confirmed, William J.Libby, an emeritus professor of forestry and genetics at the University of California, Berkeley, said that Mr.Werner's work was impressive nonetheless.
“这一数据比任何关于美洲犬的数据早7800年,”研究组成员、俄克拉何马州大学的遗传学家小瑟西尔·刘易斯说。
"This data predates any other genetic data on dogs in the New World by 7800 years," says team member Cecil Lewis Jr., a geneticist at the University of Oklahoma.
尽管最近有研究表明环境因素会增加注意缺陷多动症的患病率,但是遗传被视为比环境更有影响作用的因素。
Although recent research has identified environmental factors that may increase the likelihood of developing the disorder, it is thought to have a stronger genetic component.
一种假说认为生长在热带地区的物种比温带物种的种群小,所以受遗传漂变的影响更大。
One is that because tropical species often have smaller populations than temperate ones, they are more susceptible to genetic drift.
这表明,具备长寿遗传潜能的人比先前所想的要多许多。
This suggests that many more people have the genetic potential to survive into old age than previously thought.
最糟糕的情形下,需要耗费的时间可能是DNA复制300,000代,这一计算来自于芝加哥大学人口遗传学家乔纳森。比查德。
In the worst case, the waiting time would be 300, 000 generations, according to a calculation by Jonathan Pritchard, a population geneticist at the University of Chicago.
最糟糕的情形下,需要耗费的时间可能是DNA复制300,000代,这一计算来自于芝加哥大学人口遗传学家乔纳森。比查德。
In the worst case, the waiting time would be 300,000 generations, according to a calculation by Jonathan Pritchard, a population geneticist at the University of Chicago.
虽然卡桑德拉的非语言智商的遗传标记比平均值高3点,但儿子在这点上随我,都只是正常而已。
And while Cassandra's genetic marker for nonverbal IQ is three points higher than average, Laszlo and I are just normal.
玉米是迄今为止最多遗传研究,也是产量增长率比1.5%每年要高的粮食。
Maize, which has had by far the most genetic research, is the only crop whose yield is growing by more than that.
从父母中的一位遗传到变种基因的人患肺癌的概率比常人多30%。
Smokers who get the gene variants from one parent have a 30% greater risk of lung cancer.
在巴西,布林所做的工作,比简单地观察混血和非混血人群基因遗传的影响效果更显著。
In Brazil, Breen is able to do something even more remarkable than simply looking at the influence of genetic heritage on mixed and non-mixed people.
另一篇是发表于2010年1月的论文,表明ART胚胎里的基因和非art基因比,承受着不同的表观遗传学标志物。
Another paper, from January 2010, shows that the genes in ART embryos bear different epigenetic marks than non-ART embryos.
从遗传学角度,这个品种牛的肉倾向于拥有明显的大理石纹理,出产的牛肉有较高的油脂分布率,其脂肪的不饱和度比世界上其他种类的牛肉都要来得高。
This breed of cow is genetically predisposed to intense marbling, and produces a higher percentage of oleaginous, unsaturated fat than any other breed of cattle known in the world.
她说这将是更准确的名称比根据固定的遗传血统来命名病毒。
She said that would be more accurate than pinning the name on the genetic ancestry of the virus.
尽管ART孩子先天畸形率比普通孩子高一点点,但是他们患遗传紊乱病,例如贝威二氏综合症的风险要搞4.5到6倍。
Although ART children had a slightly higher than normal rate of birth defects, their risk of developing epigenetic disorders, such as Beckwith-Wiedemann syndrome, was 4.5 to six times higher.
当然购买一头f1代后备母猪从现金角度比自繁母猪要更贵,但是当你面对的是遗传进展的损失时,买猪会让企业更赚钱!
Yess of course buying an F1 gilt is more expensive in cash terms than producing your own, but when you factor in loss of genetic progress the business makes more profit by buying!
他们可能比现在任何一种活着的细胞都简单,也许既缺乏蛋白质催化酶,也没有我们熟悉的具磷酸核糖股价的遗传大分子。
They were probably simpler than any cell now alive, and may have lacked not only protein-based catalysis, but perhaps even the familiar genetic macromolecules, with their ribose-phosphate backbones.
这种结合的效果似乎还不错,并且肯定比遗传失效的线粒体要好。
The effects of such mixing seem benign—and certainly better than inheriting misfiring mitochondria.
基因遗传变异易含有较低的BDNF水平,也容易比没有遗传变异的人多了达两倍的机会丧失操作复杂任务的能力。
The men with a genetic tendency toward lower BDNF levels seemed to lose their ability to perform complicated tasks at almost double the rate of the men without the variation.
实验结果表明:提出的算法比现有的遗传算法以及传统的启发式方法提供了较好的结果。
The experimental results show that the proposed algorithm has a better performance than those of a traditional heuristic algorithm and an existing evolutionary algorithm.
如果同卵双生比异卵双生更相似,这就意味着基因影响了性状,例如遗传性。
If identical twins are more similar than fraternal twins, this means genes affect the trait, ie it is heritable.
遗传漂变减少人口差异的速度比变异要快得多。
Genetic drift reduces diversity in populations more quickly than mutation can introduce it.
扎瓦斯这番评说源于与帕尔·比林斯的争论,后者是加州大学教授,也是临床遗传学专家,比林斯教授坚决反对任何关于克隆人的计划。
The remarks from Zavos came during a debate with Dr. Paul r. Billings, a University of California professor and an expert on clinical genetics, who bluntly rejected any plans to clone humans.
扎瓦斯这番评说源于与帕尔·比林斯的争论,后者是加州大学教授,也是临床遗传学专家,比林斯教授坚决反对任何关于克隆人的计划。
The remarks from Zavos came during a debate with Dr. Paul r. Billings, a University of California professor and an expert on clinical genetics, who bluntly rejected any plans to clone humans.
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