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58问答库 > 请问，在不表达的基因区段上发生的碱基对替换，算不算基因突变？

请问，在不表达的基因区段上发生的碱基对替换，算不算基因突变？

2025-03-16 13:11:53

推荐回答（3个）

回答（1）：

不是基因突变。
由于DNA分子中发生碱基对的增添、缺失或替换,而引起的基因结构的改变,就叫做基因突变.注意是基因结构的改变.所以不是基因的地方发生碱基改变不是基因突变.而非编码区虽然不能表达,但是可以影响编码区的表达。

回答（2）：

算基因突变不表达的基因片段即非编码区但仍属于基因

回答（3）：

是的

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