调查还分析了病毒是如何进行变异的。
对无性系变异的应用进行了讨论。
The application of the somaclonal line variation has been discussed.
变异的主要原因是DNA发生改变。
变异的细胞还有可能引发癌症的可能。
有这种变异的人患病的风险会下降18%。
People with this variant had an 18% reduced risk of having the disease.
但是这种变异的新病毒的潜伏期可能会更长。
However for this new strain of flu, the incubation period may be longer.
技术变迁的速度在整个供应链中也有变异的倾向。
The speed of technological change has also tended to vary throughout the supply chain.
但是，这并不意味着，朝那个方向变异的次数就更多。
而后，变异的蛋白质如何引起疾病的机制也不清楚。
The mechanism by which the altered protein then causes disease is not known either.
当那个变异的基因复制到白鼠身上时，白鼠们也睡眠时间很短。
When that genetic tweak was replicated in mice, they slept less too.
这些病毒在变异的每个阶段都会遇到猪自身免疫系统的顽强抵抗。
At every stage, the virus would meet stiff resistance from the pigs' immune systems.
大概是正常的蛋白质通过一些未知的机制转变成变异的蛋白质。
Presumably, the normal protein is converted to the altered protein by some unknown mechanism.
但是在流感病毒即使只有一个很小变异的情况下机体也会不能识别。
But the body may not recognize a flu virus that has even a small change.
现就近年来乳腺癌易感基因的遗传学研究及基因变异的筛查技术进展作一综述。
This review will address the research advancement in genetic studies of breast cancer suscept...
从某种意义上说，作为文化符号的时尚，在风俗传承和变异的过程中起着催化剂的作用。
As a cultural symbol , fashion is playing an important part in course of forming custom.
基因的变异会影响人们的社会行为。
A variation of a gene can influence people's social behavior.
小范围内的高度土壤变异是很常见的，特别是在森林里。
A high degree of soil variability in a small area is common, particularly within forests.
‘我把它看作是人类的变异之一。’
他在接受一个电话采访时说：“让我们感到惊讶的是变异。”
"What we were surprised at was the variation," he said in a telephone interview.
但是他们发现，药物也造成了病毒的变异。
But the drug also caused a mutation in the virus, they found.
而使个体更好适应环境的变异将让这些个体有更多的后代。
Variations that made individuals better adapted to their environment would let them have more offspring.
但白虎仅仅是一种罕见的遗传变异，而不是一个不同的品种。
But white tigers are rare genetic mutations, not a different species.
这是一种我们已知病毒的轻微变异。
辐射直接使DNA变异，但是我们看到的辐射光大部分是可逆的。
It mutates the DNA directly. But most of what we see seems to be reversible.
这个问题的另一种变异是对校验的的使用。
但是在几乎所有的病例中，这些变异只是带来了适度的危险性。
But in almost all cases they carry only a modest risk for the disease.
这个变种即所谓的G变异。
这种变异可能意味着全球暴发(大流行)的开始。
Such a change could mark the start of a global outbreak (a pandemic).
这种变异可能意味着全球暴发(大流行)的开始。
Such a change could mark the start of a global outbreak (a pandemic).
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