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

    Jul 9, 2025 · DNA (deoxyribonucleic acid) is a set of instructions for creating the proteins that make your body work. Two strands of DNA together form a double helix — a bit like a spiral staircase.

  2. DNA Structure and Functions - Science Facts

    Sep 13, 2023 · DNA stands for Deoxyribonucleic acid, a macromolecule that carries genetic information in all living organisms, from the tiniest microorganisms to the most complex multicellular humans. …

  3. DNA | Definition, Discovery, Function, Bases, Facts, & Structure ...

    Nov 28, 2025 · DNA is an organic chemical of complex molecular structure found in all prokaryotic and eukaryotic cells. It codes genetic information for the transmission of inherited traits.

  4. DNA function & structure (with diagram) (article) | Khan Academy

    In order to understand the biological function of DNA, you first need to understand its molecular structure. This requires learning the vocabulary for talking about the building blocks of DNA, and how …

  5. DNA - Wikipedia

    A chromosome and its packaged long strand of DNA unraveled. The DNA's base pairs encode genes, which provide functions. A human DNA can have up to 500 million base pairs with thousands of …

  6. The structure and function of nucleic acids - Monash University

    The sugar-phosphate sections of DNA are often referred to as the ‘backbone’ of the DNA structure, while the base pairing is referred to as the ‘rungs’, like those of a rope ladder.

  7. DNA: Properties, Structure, Composition, Types, Functions

    Aug 3, 2023 · Deoxyribonucleic acid (DNA) is the heredity material found in humans and all living organisms. It is a double-stranded molecule and has a unique twisted helical structure.

  8. Deoxyribonucleic Acid (DNA) Fact Sheet

    Aug 24, 2020 · DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To …

  9. 11.3: Structure and Function of DNA - Biology LibreTexts

    In this section, we will discuss the basic structure and function of DNA. The building blocks of nucleic acids are nucleotides. Nucleotides that compose DNA are called deoxyribonucleotides.

  10. Deoxyribonucleic Acid (DNA) - GeeksforGeeks

    Dec 5, 2025 · DNA is made of repeating units called nucleotides, which link together to form a long, twisted, ladder-like structure known as the double helix. Each DNA molecule contains genes, which …