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 …
Nucleotide - National Human Genome Research Institute
3 days ago · A nucleotide is the basic building block of nucleic acids. RNA and DNA are polymers made of long chains of nucleotides.
Nucleotide | Description, Types, Function, & Facts | Britannica
Dec 11, 2025 · DNA is made of nucleotides. A nucleotide has two components: a backbone, made from the sugar deoxyribose and phosphate groups, and nitrogenous bases, known as cytosine, thymine, …
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 …
Nucleotide: Structure, Types, and Biological Functions
Apr 28, 2024 · Explore nucleotides—the building blocks of DNA and RNA. Learn about their structure, types, and essential roles in genetic information storage and cellular processes.
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 …
9.1: Nucleotides - Chemistry LibreTexts
Nucleic acids are molecules that store and replicate information for cellular growth and reproduction. The two types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The …
Definition of nucleotide - NCI Dictionary of Genetics Terms
DNA is made up of four building blocks called nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C). The nucleotides attach to each other (A with T, and G with C) to form chemical bonds …
3 Parts of a Nucleotide and How They Are Connected - ThoughtCo
Jun 9, 2025 · A nucleotide has three parts: a nitrogenous base, a pentose sugar, and a phosphate group. The nitrogenous base is attached to the first carbon of the sugar in nucleotides. The …
What is DNA? Definition, Function & Structure - Cleveland Clinic
Jul 7, 2025 · What’s the structure of DNA? DNA is a winding, spiral shape called a double helix. This means it’s actually two corkscrew shapes connected in the middle, like a twisty zipper. In …