copy number

常见例句

Recently geneticists have taken a closer look at a genetic aberration previously considered rare: copy number variation (CNV).
最近遗传学家对以前被认为很罕见的遗传变异：拷贝数变异（copy number variation ，CNV）进行了更细致的研究。
“The copy number variation that researchers had seen before was simply the tip of the iceberg, while the bulk lay submerged, undetected,” said Dr Hurles.
“研究人员以前看到的复制数量变化只是冰山一角，而其绝大部分都还未浮出水面，未被发现，”赫尔斯博士说。
Their study looked for chromosomal deletions and duplications known as copy number variants (CNV) and found that these were present in 16% of the children with ADHD.
他们研究被称为拷贝数变异（CNV）的染色体的删减和复制，发现在患有多动症的儿童中有 16% 都存在。

For example, a recent (2007) study by Sebat et al. found a clear link between ASD and de novo copy number variation (de novo mutations are those that arise for the first time in the children).
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