最近，人们在突变积累实验（MA）中测定有害基因突变（DGM）的兴趣大增。
There is a recent upsurge of interest in characterizing deleterious genomic mutations (DGM) by mutation accumulation (MA) experiments.
准种的演变不仅是机体阳性选择压力的结果，也有阴性选择的参与，即随机突变积累的结果。
The evolvement of quasispecies is not only the result of positive immune pressure in the host, but also the accumulation of random mutation.
他们推断，沉默基因积累随机突变，最终使它们变得无用。
Silent genes accumulate random mutations, they reasoned, eventually rendering them useless.
那是由于他们没有进行选择，因此他们易于积累突变。
That's because they aren't under selection, so they tend to accumulate mutations.
孩子更容易受到核污染的侵害，这是因为他们的甲状腺正处于发育过程，如果长期受到放射性的攻击，致癌因素会不断积累，这就容易引起突变。
Children are more vulnerable because the thyroid is still developing and therefore more likely to accumulate cancer-causing mutations over time.
与此相对应，认为进化上的改变是渐进式的观点认为突变是随着时间的流逝而不断积累的，这一过程同一支世系衍生出新物种的多少无关。
The alternative view, that evolutionary changes tick along gradually, suggests mutations would accumulate incrementally as time goes by, independently of how many new species a lineage spins off.
癌症是通过基因突变和后生修改的积累产生的。
Cancers arise through the accumulation of genetic mutations and epigenetic modifications.
在编码特定蛋白质的基因上发生氨基酸变化的突变的积累速率是恒定的。
The rate at which amino acid changing mutations accumulate in genes for specific proteins tends to be constant over time.
于是后一类有害突变逐渐积累而不是被除去，最终将达到远超过致命的数量。
They will thus accumulate without being winnowed out and will eventually be present in overwhelmingly lethal numbers.
推测可能是阳生植物叶片细胞中有更多的叶绿体，积累了更多的突变造成的。
A likely explanation is that more variations accumulated by more chloroplasts in cells of sun plants.
推测可能是阳生植物叶片细胞中有更多的叶绿体，积累了更多的突变造成的。
A likely explanation is that more variations accumulated by more chloroplasts in cells of sun plants.
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