Word · Frequency #5920
RNA
核糖核酸
核心释义
a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell
- 1.
核糖核酸
n (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell
用法In use
RNA carries genetic information from DNA to the ribosomes for protein synthesis.
用法提示：这里RNA作为主语，表示核糖核酸在细胞中的功能。
Scientists are studying how RNA can be used to develop new vaccines.
用法提示：RNA作为介词宾语，泛指核糖核酸的应用。
Some viruses, such as the influenza virus, store their genetic material as RNA.
用法提示：RNA作为介词宾语，表示病毒遗传物质的形态。
RNA + is + involved in + noun phrase
RNA is involved in protein synthesis.
RNA参与蛋白质合成。
RNA + transmits + noun phrase
相关词与表达Connections
搭配Collocations
- messenger RNA
- 信使RNA
- Messenger RNA carries genetic information from DNA to the ribosomes.信使RNA将遗传信息从DNA携带到核糖体。
- ribosomal RNA
- 核糖体RNA
- Ribosomal RNA is a key component of the ribosome.核糖体RNA是核糖体的关键组成部分。
- transfer RNA
- 转运RNA
- Transfer RNA helps in the translation of mRNA into proteins.转运RNA有助于将mRNA翻译成蛋白质。
- RNA sequence
- RNA序列
- The RNA sequence determines the structure and function of the molecule.RNA序列决定了分子的结构和功能。
学习提示Learner notes
记忆技巧Memory Tip
RNA（核糖核酸）是遗传信息从DNA到蛋白质的中转站，记住'R'代表核糖，'N'代表核酸，'A'代表酸。
语境与语域Context & Register
专业术语，多用于生物化学、分子生物学和医学领域，在学术论文、实验室报告及临床检测中常见。register: neutral (formal/technical).
语法说明Grammar Note
通常用作不可数名词，但复数形式rnas用于指多种类型的核糖核酸。
发音与拼写Pronunciation & Spelling
rna is pronounced as an initialism /ɑr ɛn eɪ/, not as a word. Words ending in 'na' like those listed have different stressed vowels and final syllables; they do not rhyme with 'rna' or with each other. Use these to practice the 'na' spelling pattern, but be aware of pronunciation differences.
用法优先级Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from ECDICT, WIKTIONARY.