Those mutations happen all the time.
这样的突变时刻都在发生。
基因突变以两种方式进行。
However, most mutations are deleterious.
然而，大多数突变是有害的。
Gene mutations are an ongoing process.
基因是一个前进的过程。
Mutations are the driving force of evolution.
研究组领头人内村有国说：“突变是进化的推动力。
The mutations were found mostly in women.
这类基因变异通常发生在女性身上。
They look at mutations as kind of a random event.
他们认为突变是一种随机的事件。
Gene mutations are alterations in the DNA code.
基因突变是指DNA密码的改变。
All mutations in DNA have effect (s) on the cell.
所有的基因突变都对细胞造成影响。
However, as time passes by, all sudden mutations.
然而，时过境迁，一切都陡然突变。
It has 3 genetic mutations that make it so small.
它有3个，使这么小的基因突变。
The target mutations were identified by sequencing.
序列测定证实目标突变存在。
Things like unusual eye or hair colors are mutations.
比如异常的眼睛或头发颜色都属于变异。
Mutations can also lead directly to diseases like cancer.
突变还能够直接导致疾病如癌症的发生。
However, gene mutations disrupt a gene's normal function.
然而，基因突变破坏基因的正常功能。
In Australia, I have never seen any mutations of this bird.
在澳大利亚，我从未见过的任何突变，这鸟。
They also found 23,000 mutations in small cell lung cancer.
他们还发现了23,000突变的肺癌小细胞。
Among all these nucleotides, they found only four mutations.
在所有测序的这些核苷酸中，他们仅发现了4个突变。
The mutations at 16 positions were found for the first time.
其中16个突变位点未见过报道。
But now in some cases we choose to keep these bad mutations around.
但是如今我们选择保留那些有害突变。
But white tigers are rare genetic mutations, not a different species.
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。
Those mutations had little effect on how the receptor grabbed hormones.
这些突变对受体如何结合激素没有影响。
For example, a butterfly may produce offspring with new mutations.
例如，一只蝴蝶可能产生有新突变的后代。
Mutations can alter the protein, perhaps making it function differently.
突变可以改变蛋白质，或许使它的功能改变。
Background - Rare mutations in the mitochondrial genome may cause disease.
研究背景——线粒体基因组的稀有变异可引发疾病。
Background - Rare mutations in the mitochondrial genome may cause disease.
研究背景——线粒体基因组的稀有变异可引发疾病。
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