But if the gene copy contains disabling typos or is missing pieces of the original, such as the promoter, it will become a pseudogene.
但如
出现短缺（像是缺失启动子）或序列发生错误
损坏，它们就成了伪。
;;,修正,
正;;;But if the gene copy contains disabling typos or is missing pieces of the original, such as the promoter, it will become a pseudogene.
但如出现短缺（像是缺失启动子）或序列发生错误损坏，它们就成了伪。
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