V2EX nucleic acid

Nucleic Acid

定义 Definition

n. 生物化学术语,指由核苷酸连接而成的大分子,主要包括 DNA 和 RNA。它们通过核苷酸序列储存、传递或表达遗传信息,在细胞和病毒的遗传系统中起核心作用。每个核苷酸通常包含含氮碱基、糖和磷酸基团。

发音 Pronunciation

/nukle.k sd/; /njukle.k sd/

例句 Examples

DNA is a type of nucleic acid.
DNA 是一种核酸。

Nucleic acid sequences can help scientists compare genetic relationships between organisms.
核酸序列可以帮助科学家比较生物之间的遗传关系。

词源 Etymology

nucleic 来自 nucleus,意为“细胞核”,因为这类物质最早与细胞核有关;acid 指其分子中含有带酸性特征的磷酸基团。中文“核酸”也保留了“核”和“酸”这两个核心意思。

相关词 Related Words

科学文献用例 Scientific Usage

  • 在分子生物学和生物化学教材中,用于介绍 DNA、RNA、遗传信息流和核苷酸结构。
  • 在基因组学论文中,用于描述测序、序列比对、突变检测和遗传变异分析。
  • 在实验室报告中,常见于核酸提取、核酸纯度测定、PCR 和 RNA 分析等实验语境。
  • 在医学和公共卫生检测中,用于描述基于 DNA 或 RNA 的病原体检测、遗传检测和分子诊断方法。
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