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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 ...

    5 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.

  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? 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 …

  5. 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.

  6. How DNA Works: The Code of Life Decoded - sciencenewstoday.org

    May 18, 2025 · DNA is a long, thread-like polymer composed of smaller units called nucleotides. Each nucleotide is made up of three components: a phosphate group, a five-carbon sugar …

  7. The DNA Helix Changed How We Thought About Ourselves

    15 hours ago · “The laws of inheritance are quite unknown,” Charles Darwin acknowledged in 1859. The discovery of DNA’s shape altered how we conceived of life itself.

  8. 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 …

  9. 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.

  10. The legacy of James Watson, who helped crack DNA's code | AP …

    20 hours ago · James Watson, the scientist who co-discovered the structure of DNA, died on Nov. 6, 2025, at the age of 97.