mrna

mrna — noun

1. the short form of 'messenger RNA', the molecule inside living cells that carries

1.名詞B2
釋義

the short form of 'messenger RNA', the molecule inside living cells that carries genetic instructions from DNA to the part of the cell where proteins are made. These protein-building instructions control how a cell behaves and how an organism develops.

例句

In biology class, Eli learned how mRNA copies instructions from DNA.

uncountable noun — no article needed

Pfizer and BioNTech developed an mRNA vaccine for COVID-19.

mRNA as modifier in compound nouns

同義詞
  • messenger RNA

    the full, formal name; used mainly in textbooks and scientific papers

用法筆記

The 'm' in mRNA stands for 'messenger'. The abbreviation is always written in lowercase 'm' followed by uppercase 'RNA'. It is typically used as an uncountable noun ('mRNA carries instructions') but can appear with an article when describing a type or instance ('a synthetic mRNA designed for the trial').

常見錯誤

❌The mRNA vaccine contains the virus itself.
✅The mRNA vaccine contains instructions that tell cells to make a harmless piece of the virus.
💡mRNA vaccines do not contain live or killed virus; they deliver genetic instructions only.
❌Doctors gave the patient an MRNA drug.
✅Doctors gave the patient an mRNA drug.
💡The 'm' must be lowercase; writing 'MRNA' is incorrect.