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

    4 days ago · 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.

  2. 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 …

  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 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 …

  6. DNA Definition & Meaning - Merriam-Webster

    : any of various nucleic acids that are usually the molecular basis of heredity, are constructed of a double helix held together by hydrogen bonds between purine and pyrimidine bases (see base …

  7. DNA Definition & Meaning | Dictionary.com

    DNA is a large, complex molecule that allows cells to function and carries the genetic code that determines the traits of a living organism. DNA is in every cell of every living thing.

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

    DNA is well-suited to perform this biological function because of its molecular structure, and because of the development of a series of high performance enzymes that are fine-tuned to …

  9. 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 …

  10. What is DNA? Understanding the Blueprint of Life

    Apr 5, 2025 · DNA is a long molecule made up of smaller subunits called nucleotides. Each nucleotide consists of three components: a phosphate group, a deoxyribose sugar molecule, …