...叶藻共检测 到166 个多态位点( 9 个信息简约位点 ［10］ 、156 个 单一信息位点) ，172 个核苷酸替代( nucleotide substitution) 中出现88 个转换( transition) 、84 个颠 换( transversion) 。
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摘要：计算核苷酸替换(nucleotide substitution)的进化速率(rate of evolution)得 出了一个好像很高的值，因此许多突 变一定是中性(neutral)的。
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single nucleotide substitution 单核苷酸变异
nucleotide substitution processes 核苷酸替代
nucleotide pair substitution 核苷酸对取代
In the study of mutation mechanism, it was found in 6 cases that there were gains and losses of sites due to nucleotide substitution.
在研究突变机制时，发现有6例由于核苷酸的替换引起了限制性位点的增减。
We also show that the ENCODE regions are representative of the entire genome by estimating the rate of nucleotide substitution and comparing it to published data.
我们也通过评估核酸替代率并将它与发表的数据相比较，显示了ENCODE区域是整个基因组的代表。
Influence of neighboring base composition on nucleotide substitution bias was observed in the sequence of nuclear pseudogenes and chloroplast non-coding and coding sequences.
核苷酸替换偏好性受其相邻碱基组成的影响现象已经在核基因组假基因序列和叶绿体基因组的非编码序列和编码序列中发现。
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