Isolated case — an individual who is the only member of his or her kindred affected by a genetic disorder, either by chance or by new mutation. See also sporadic.
一个家系中唯一的患病个体，可由上代遗传基因决定，也可由于新突变产生。参见散发。
Conclusion: This new method of DNA sequence deletion mutation is simple and accurate. It could avoid new mutation in PCR process of traditional DNA manipulation method.
结论：该方法操作简单、精确，能够避免引入新突变，为DNA序列的缺失突变提供了一种新方法。
The latter is believed to be a relatively new mutation, and it is estimated that it appears in Homo sapiens "only" 50,000 years ago at the time of humankind's great exodus from Africa.
估计在5万年以前的智人时代，当人类从非洲大量迁徙而出时，这种变异就已出现了。
Research in basic theory of GA and its application are retrospected and a new mutation operator, combinational mutation, is defined.
回顾遗传算法的理论和应用研究方面的进展，定义了新的变异算子。
Research in basic theory of GA and its application are retrospected and a new mutation operator, combinational mutation, is defined.
回顾遗传算法的理论和应用研究方面的进展，定义了新的变异算子。
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