They arise when there is a clonal expansion of a mutated cell.
一个突变细胞如发生克隆性扩增，就引起这些大量突变。
We identified telomerase activity in follicle dermal stem cells and marrow MSCs and demonstrated that they were capable of clonal expansion.
检测两种干细胞端粒酶活性，结果证实它们具有克隆扩增的能力。
The strategy of spacial expansion is an important part of life history strategy of clonal plant population.
空间拓展策略是克隆植物种群生活史策略的重要组成部分。
The strategy of spacial expansion is an important part of life history strategy of clonal plant population.
空间拓展策略是克隆植物种群生活史策略的重要组成部分。
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