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单词 Copy number variation
释义

Copy number variation

英语百科

Copy-number variation

This gene duplication has created a copy-number variation.  The chromosome now has two copies of this section of DNA, rather than one.

Copy-number variations (CNVs) are a form of structural variation that manifest as deletions or duplications in the genome. For example, the chromosome that normally has sections in order as A-B-C-D might instead have sections A-B-C-C-D (a duplication of "C") or A-B-D (a deletion of "C"). Cells with CNVs have abnormal or, for certain genes, normal variations in their copy number.

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