染色体组包涵很多基因，太多的错误复制，损伤和遗漏会导致数以万计的基因改变。
Chromosomes contain many genes, so mis-copies, breaks and omissions lead to tens of thousands of genetic changes.
当流感病毒由一个人或一只鸟传给另一个人或鸟时，由于病毒复制错误，它们通常会带上基因中的随机变化。
As influenza viruses pass from one person, or bird, to another, they normally pick up random changes in their genes because of errors in viral replication.
此举效仿了多家其他杂志的做法，数据分析的基本错误正造成很多已发表的研究成果不可复制，此前人们普遍关注这个问题。
The policy follows similar efforts from other journals, after widespread concern that basic mistakes in data analysis are contributing to the irreproducibility of many published research findings.
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