: any of various nucleic acids that contain ribose and uracil as structural components and are associated with the control of cellular chemical activities compare messenger rna, ribosomal rna, transfer rna

Examples of RNA in a Sentence

Recent Examples on the Web The newest version of the software can predict not only the shape of proteins, but also the structures of DNA, RNA and other molecules, such as ligands. Christian Thorsberg, Smithsonian Magazine, 16 May 2024 Nor could AlphaFold 2 predict protein interactions with other kinds of molecules, such as DNA, RNA, ligands, and ions, that are found inside living things. Jeremy Kahn, Fortune, 8 May 2024 AlphaFold 3 goes beyond that and can model DNA, RNA, and smaller molecules called ligands, expanding the model’s capability for scientific use. Emilia David, The Verge, 8 May 2024 By Will Henshall May 8, 2024 11:00 AM EDT Researchers at Google DeepMind have developed AlphaFold 3, an AI model that can predict the structure of and interactions between biological molecules including proteins, DNA and RNA, and small molecules that could function as drugs. Will Henshall, TIME, 8 May 2024 AlphaFold 3 can model large molecules such as DNA and RNA, which carry genetic code, but also much smaller entities, including metal ions. Will Knight, WIRED, 8 May 2024 Increasingly, biologists have also deposited the structures of small molecules, DNA, RNA and their combinations. Yasemin Saplakoglu, Quanta Magazine, 8 May 2024 Interestingly, successful gene therapies often use RNA molecules to modify DNA rather than directly manipulating it. William A. Haseltine, Forbes, 27 Mar. 2024 Researchers prefer proteins as cancer biomarkers over the genetic materials DNA and RNA because proteins provide a snapshot of what is happening in a patient’s body at the time a sample is collected. Danielle Whitham, Discover Magazine, 22 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'RNA.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

ribonucleic acid

First Known Use

1942, in the meaning defined above

Time Traveler
The first known use of RNA was in 1942

Dictionary Entries Near RNA

Cite this Entry

“RNA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/RNA. Accessed 23 May. 2024.

Kids Definition

: any of various nucleic acids that are typically found in the cytoplasm of cells, are usually composed of a single chain of nucleotides, differ from DNA in containing ribose as the five-carbon sugar instead of deoxyribose, and that function mostly in protein synthesis

called also ribonucleic acid

compare messenger rna, ribosomal rna, transfer rna

Medical Definition

: any of various nucleic acids that contain ribose and uracil as structural components and are associated with the control of cellular chemical activities

called also ribonucleic acid

see messenger rna, ribosomal rna, transfer rna

More from Merriam-Webster on RNA

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