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  1. Nucleotide - Wikipedia

    Nucleotides are organic molecules composed of a nitrogenous base, a pentose sugar and a phosphate. They serve as monomeric units of the nucleic acid polymers – deoxyribonucleic acid (DNA) and …

  2. Nucleotide | Description, Types, Function, & Facts | Britannica

    Dec 11, 2025 · A nucleotide is any member of a class of organic compounds in which the molecular structure comprises a nitrogen-containing unit (base) linked to a sugar and a phosphate group.

  3. Nucleotide - National Human Genome Research Institute

    4 days ago · A nucleotide is the basic building block of nucleic acids (RNA and DNA). A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate …

  4. Nucleotide Definition, Structure, and Function

    Aug 31, 2023 · What Is a Nucleotide? A nucleotide is an organic molecule that serves as the building block for nucleic acids like DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). These …

  5. Nucleotide Structure and Function in Genetics - Biology Insights

    Apr 29, 2025 · DNA nucleotides are the fundamental units of deoxyribonucleic acid, a molecule that stores and transmits genetic information across generations. These nucleotides are distinguished by …

  6. 19.1: Nucleotides - Chemistry LibreTexts

    The repeating, or monomer, units that are linked together to form nucleic acids are known as nucleotides. The deoxyribonucleic acid (DNA) of a typical mammalian cell contains about 3 × 10 9 …

  7. Nucleotide: Structure, Types, and Biological Functions

    Apr 28, 2024 · A nucleotide is a pentose sugar linked to a nitrogenous base and a phosphate molecule. Nucleotides are the building blocks of DNA. Figure: Nucleotide. The nitrogenous bases are derived …

  8. What are Nucleotides? - Creative Proteomics

    Nucleotides are organic molecules that serve as the building blocks of nucleic acids, such as DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). They are composed of three primary …

  9. Nucleotide | Research Starters - EBSCO

    A nucleotide is a fundamental building block of nucleic acids, specifically deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), which are essential for storing and transmitting genetic information.

  10. Definition of nucleotide - NCI Dictionary of Genetics Terms

    A nucleotide is made up of a nitrogen-containing base (adenine, guanine, thymine, and cytosine in DNA, and adenine, guanine, uracil, and cytosine in RNA), a phosphate group, and a sugar molecule …