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  1. DNA - Wikipedia

    DNA and ribonucleic acid (RNA) are nucleic acids. Alongside proteins, lipids and complex carbohydrates (polysaccharides), nucleic acids are one of the four major types of …

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

    Dec 11, 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.

  3. Deoxyribonucleic Acid (DNA) Fact Sheet

    Aug 24, 2020 · Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique.

  4. What is DNA?: MedlinePlus Genetics

    Jan 19, 2021 · What is DNA? DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA.

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

    Jul 7, 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 …

  6. DNA: Function, structure, and impact on health - Medical News …

    Aug 26, 2025 · DNA is a molecule found in most cells that holds each person’s unique genetic code. It is responsible for coding proteins, which are essential to cell growth and development.

  7. Definition of DNA - NCI Dictionary of Genetics Terms - NCI

    The molecule inside cells that contains the genetic information responsible for the development and function of an organism. DNA molecules allow this information to be passed from one …

  8. 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.

  9. What is DNA and its stucture? | Definition of DNA - YourGenome

    A DNA molecule is made up of two long strands of bases that wind around each other into a spiral shape. This is called the double helix and looks like a twisted ladder.

  10. Introduction: What is DNA? | Learn Science at Scitable - Nature

    Introduction: What Is DNA? Deoxyribonucleic acid, more commonly known as DNA, is a complex molecule that contains all of the information necessary to build and maintain an organism.