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  1. Nucleotide - Wikipedia

    This nucleotide contains the five-carbon sugar deoxyribose (at center), a nucleobase called adenine (upper right), and one phosphate group (left). The deoxyribose sugar joined only to the nitrogenous …

  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

    2 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 · Understanding nucleotides is key to grasping how genetic information is encoded, replicated, and expressed within organisms. They form the backbone of both DNA and RNA, which …

  6. What is DNA? Definition, Function & Structure - Cleveland Clinic

    Jul 7, 2025 · What is DNA? DNA is the set of instructions that make you, you. These instructions tell your body how to create organs and tissues, how to function and what you look like. You can think of …

  7. 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 …

  8. 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 …

  9. Principles of Biochemistry/Nucleic acid I: DNA and its nucleotides ...

    Jan 29, 2021 · The nucleotide repeats contain both the segment of the backbone of the molecule, which holds the chain together, and a base, which interacts with the other DNA strand in the helix. A base …

  10. Nucleotide - New World Encyclopedia

    A nucleotide is a chemical compound with three components: a nitrogen -containing base, a pentose (five-carbon) sugar (relatively simple carbohydrates), and one or more phosphate groups.