cytosine
noun
cy·to·sine
ˈsī-tə-ˌsēn 
Examples of cytosine in a Sentence
Recent Examples on the Web
Biology’s four bases—adenine (A), thymine (T), cytosine (C) and guanine (G)—encode the instructions that keep life alive.
—
Andrew Whalen, Forbes.com, 9 July 2025
In the second set of experiments, the researchers used the targeting and guide RNAs of the CRISPR/Cas system, but linked them to a protein called a cytosine base editor.
—John Timmer, Ars Technica, 4 Mar. 2025
The most common way of doing this is to link a single carbon atom (a methyl group) to the base cytosine.
—ArsTechnica, 23 June 2025
This protein essentially lops a small part of the DNA base cytosine, or C, converting it into a thymidine, or T. That can introduce smaller and more specific mutations than CRISPR/Cas.
—John Timmer, Ars Technica, 4 Mar. 2025
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Andrew Whalen, Forbes.com, 9 July 2025
In the second set of experiments, the researchers used the targeting and guide RNAs of the CRISPR/Cas system, but linked them to a protein called a cytosine base editor.
—John Timmer, Ars Technica, 4 Mar. 2025
The most common way of doing this is to link a single carbon atom (a methyl group) to the base cytosine.
—ArsTechnica, 23 June 2025
This protein essentially lops a small part of the DNA base cytosine, or C, converting it into a thymidine, or T. That can introduce smaller and more specific mutations than CRISPR/Cas.
—John Timmer, Ars Technica, 4 Mar. 2025
See All Example Sentences for cytosine
Cite this Entry
“Cytosine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cytosine. Accessed 18 Jul. 2025.
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cytosine
noun
cy·to·sine
ˈsīt-ə-ˌsēn
Medical Definition
cytosine
noun
cy·to·sine
ˈsīt-ə-ˌsēn
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