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    DNA
    /diːɛnˈeɪ/

    noun

    • 1. a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

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  2. www.britannica.com › science › DNADNA | Definition, Discovery, Function, Bases, Facts, & Structure

    Jun 25, 2024 · DNA, organic chemical of complex molecular structure found in all prokaryotic and eukaryotic cells. It codes genetic information for the transmission of inherited traits. The structure of DNA was described in 1953, leading to further understanding of DNA replication and hereditary control of cellular activities.

  3. en.wikipedia.org › wiki › DNADNA - Wikipedia

    Deoxyribonucleic acid ( / diːˈɒksɪˌraɪboʊnjuːˌkliːɪk, - ˌkleɪ -/ ⓘ; [1] DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. The polymer carries genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses.

  4. www.genome.gov › genetics-glossary › Deoxyribonucleic-AcidDeoxyribonucleic Acid (DNA) - National Human Genome Research...

    1 day ago · Deoxyribonucleic acid (abbreviated DNA) is the molecule that carries genetic information for the development and functioning of an organism. DNA is made of two linked strands that wind around each other to resemble a twisted ladder — a shape known as a double helix.

  5. medlineplus.gov › genetics › understandingWhat is DNA?: MedlinePlus Genetics

    Jan 19, 2021 · 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. byjus.com › biology › dna-structureWhat Is DNA?- Meaning, DNA Types, Structure and Functions -...

    Read on to explore DNA meaning, structure, function, DNA discovery and diagram in complete detail. What is DNA? “DNA is a group of molecules that is responsible for carrying and transmitting the hereditary materials or the genetic instructions from parents to offsprings.”

  7. www.healthline.com › health › what-is-dnaWhat Is DNA? Summary, Structure, and Importance - Healthline

    Aug 14, 2019 · DNA stands for deoxyribonucleic acid. It contains units of biological building blocks called nucleotides. DNA is a vitally important molecule for not only humans but also most other...

  8. biologydictionary.net › dnaDNA - Definition, Function, Structure and Discovery - Biology...

    Apr 8, 2019 · Deoxyribonucleic acid, or DNA, is a biological macromolecule that carries hereditary information in many organisms. DNA is necessary for the production of proteins, the regulation, metabolism, and reproduction of the cell.