nucleotide
Americannoun
noun
Other Word Forms
Etymology
Origin of nucleotide
First recorded in 1905–10; alteration of nucleoside
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Vocabulary lists containing nucleotide
Genetics - Middle School
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Genetics - High School
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Biochemistry
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
This enables the essential information defining an organism’s core features—represented in the nucleotide sequences of DNA—to be passed down to its offspring.
From The Wall Street Journal ● Dec. 26, 2025
Notably, the increase in activity was specific to increasing concentrations of ATP or histidine; no changes were observed in response to other nucleotide triphosphates or amino acids.
From Science Daily ● Apr. 18, 2024
They're made of extended nucleotide sequences, similar to DNA, but they can also act as enzymes to facilitate reactions, much like proteins.
From Science Daily ● Mar. 4, 2024
"The evolutionary relationship of genes can usually be detected when two genes retain similar nucleotide sequences or encoded amino acid sequences," Kawasaki said, referring to the materials comprising an organism's genetic code.
From Science Daily ● Jan. 30, 2024
A mutation is a change in a nucleotide, copied in the next generation, which breeds true.
From "Cosmos" by Carl Sagan
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