V2EX pseudogene

Pseudogene

释义 Definition

假基因:在基因组中与某个功能基因序列相似,但通常由于发生突变、缺失或插入等原因而失去编码功能(一般不再产生功能性蛋白质)的DNA序列。需要注意的是,少数假基因仍可能参与调控等作用。

发音 Pronunciation (IPA)

/sudodin/

例句 Examples

A pseudogene looks like a normal gene but usually doesn’t work.
假基因看起来像正常基因,但通常不起作用。

Researchers found a pseudogene that may influence how nearby genes are expressed.
研究人员发现一个假基因,可能会影响附近基因的表达方式。

词源 Etymology

pseudo-(“假的、伪的”)+ gene(“基因”)构成,字面意思就是“伪基因/假基因”。该术语用于描述那些与已知基因相似、但在演化过程中因突变等原因而失去典型功能的基因序列。

相关词 Related Words

文学与作品 Literary Works

  • 《Genome(基因组)》 Matt Ridley(科普作品中常在讨论基因组结构、进化与“非编码/失活序列”时提及假基因概念)
  • 《The Selfish Gene(自私的基因)》 Richard Dawkins(相关讨论常涉及基因、演化与基因组中的“遗留/失活”序列背景;不同版本与章节措辞可能有所差异)
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