V2EX genetic code

Genetic Code

定义 Definition

genetic code遗传密码/遗传编码。指细胞在DNA或RNA中的核苷酸序列如何对应并指导合成蛋白质时的氨基酸序列的一套规则(例如“三联体密码子”)。在日常语境中也可泛指生物体携带的遗传信息(较宽泛用法)。

发音 Pronunciation (IPA)

/dntk kod/

例句 Examples

The genetic code tells cells how to make proteins.
遗传密码告诉细胞如何制造蛋白质。

Although the genetic code is nearly universal, some organisms and organelles show small variations in how certain codons are read.
虽然遗传密码几乎是通用的,但某些生物及细胞器在读取某些密码子时会出现细微差异。

词源 Etymology

genetic 来自 gene(基因)及希腊语词根 *gen-*(“产生、出生”之意),表示“与遗传有关的”;code 来自拉丁语 codex(最初指“书册、法典”),引申为“编码/规则系统”。合起来指“用规则来对应遗传信息与蛋白质合成”的体系。

相关词 Related Words

文学作品 Literary Works

  • 《双螺旋》(The Double Helix,James D. Watson):涉及DNA结构发现的科学史叙述,讨论遗传信息与“密码”概念的形成背景。
  • 《自私的基因》(The Selfish Gene,Richard Dawkins):以通俗方式谈遗传信息的复制与表达,常在相关章节中提到遗传信息的“编码”与传递。
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