But the new evidence that humans have adapted rapidly and extensively suggests that natural selection must have other options for changing a trait besides waiting for the right mutation to show up.
但人类能够全面并且快速适应新环境，这个新发现的证据说明自然选择要想改变某一特征可能不必等待正确的变异发生，而是还有其它选择。
By a process of elimination, therefore, the three researchers were left with the conclusion that, by pushing metabolic rates up, tropical heat causes more mutation and thus more speciation.
因此，三位研究人员得到如下结论：由于代谢速度的提升，热带地区的热量引起更多的突变，也因此形成更多的物种。
Researchers are reporting that the "Asian Flush" mutation cropped up just as rice was first being domesticated, and it may have protected early farmers from the harms of drinking too much.
研究者发现‘亚洲人红脸’的变异在水稻第一次被驯化时产生，它可能保护了早期的农民不会因为饮酒过度而受损。
But because the virus is so adept at eluding the body's immune system via mutation, many new varieties crop up each year.
但是因为这种病毒能够通过变异非常老练地逃过身体的免疫系统，每年都产生许多新的变种。
So the faster iteration makes up for the slower mutation and provides better concurrency because multiple threads can iterate the list simultaneously.
所以更快的迭代可以补偿较慢的变化过程，并提供更好的并发性，因为多个线程可以同时迭代列表。
You speed up the mutation rate, forcing such dramatic genetic change that the virus crashes completely.
如果能够加速它变异的频率，就能迫使这种戏剧性的基因变化让病毒完全崩溃。
Folic acid, up to 0.8 mg day, lowers homocysteine concentrations in people with and without this mutation, they say.
他们说，每天0.8毫克的叶酸可以降低同型半胱氨酸浓度，带有和不带有该突变的人群都是。
"By using a different assay, we were able to pick up a completely distinct yet equally important type of genetic mutation that is likely to persist throughout a child's lifetime," Grant said.
Grant说，通过不同的化验分析方法，我们还发现了一种截然不同但同样重要的基因突变，而这种基因突变很可能在小孩的一生当中都会存在。
Although a recent study found that a single gene mutation heightened the risk of obesity by up to 67 percent, genetics cannot explain the skyrocketing obesity trend.
尽管最近的研究发现单基因突变使肥胖的风险增加高达67%，但是遗传不能解释飞涨的肥胖趋势。
Up to date, on the bases of linkage analysis and cytogenetic analysis, the loci associated with microphthalmia have been identified and mutation analysis of the candidate loci are performed.
迄今为止，用连锁分析和细胞遗传学方法对小眼球相关基因进行了基因定位并进一步对候选基因进行突变分析。
The problem came in March when a mutation showed up that scientists knew would wreak havoc, but it was too late.
到了去年三月，一种流感病毒的变种突然出现了，科学家们知道它有肆虐的可能，但为时已晚。
"In a nutshell, the idea is to design drugs that speed up the mutation rates of viruses and push them beyond a threshold called a" phase transition.
简而言之，该想法就是设计可以加速病毒突变率并使之超出所谓的“相变”阈值的药物。
The framework is given for solving combinatorial optimization problems with Line up Competition Algorithm (LCA), and the two principles of determining mutation neighbor region is presented.
给出了列队竞争算法解组合优化问题的框架和确定变异邻域的两条原则。
This paper proposes to use fuzzy logic controller to speed up the convergence of the crossover and mutation process.
本文的目的在于引进模糊逻辑控制器来加快交叉与突变过程的收敛速度。
So an adaptive method of updating pheromone and a mutation strategy of clearing up invalid assignment were introduced to increase convergent speed.
为此，提出一种自适应的信息素更新方法和消除无效分配的变异策略，提高了收敛速度。
To set up using the gene chip technology to detect and identify quickly and accurately the HBV P gene YMDD Motif mutation during the chronic hepatitis treated with lamivudine.
建立乙型肝炎病毒变异基因诊断芯片对拉米夫定治疗慢性乙型肝炎过程中出现的肝炎病毒P基因区YMDD变异进行快速准确的检测方法。
Spaceflight mutation breeding opens up a new way for breeding, it isn't usually applied in forage breeding field yet, the prospect is optimistic.
空间诱变育种技术开创了育种的又一新途径，其在牧草育种的应用还不多，但前景广阔。
Conclusion the site specific point mutation system can modify human gene in vitro more accurately. It is useful in the setting up of animal models.
结论体外定点突变系统可以对基因进行精细的修饰，为建立更精确地模拟人类疾病的动物模型打下基础。
In abandoning her physical form, Shalassa performed an elemental mutation and shed the sacred water that made up her body.
为了抛弃她的物理形态，莎拉萨利用神圣之水重组了自己的身体，从而转化为元素形态。
In aggressive gliomas, extra copies of the EGFR gene are produced, and half of such tumors also carry an EGFR mutation, which ramps up tumor growth and portends a poor prognosis.
在侵袭性脑胶质瘤中，表皮生长因子受体基因拷贝数更高，而且一半的侵袭性脑胶质瘤伴有一个GEFR突变。这个突变增加了肿瘤的生长，伴随一个糟糕的预后效果。
In aggressive gliomas, extra copies of the EGFR gene are produced, and half of such tumors also carry an EGFR mutation, which ramps up tumor growth and portends a poor prognosis.
在侵袭性脑胶质瘤中，表皮生长因子受体基因拷贝数更高，而且一半的侵袭性脑胶质瘤伴有一个GEFR突变。这个突变增加了肿瘤的生长，伴随一个糟糕的预后效果。
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