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  1. DNA - Wikipedia

    Within eukaryotic cells, DNA is organized into long structures called chromosomes. Before typical cell division, these chromosomes are duplicated in the process of DNA replication, providing a complete …

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

    Jul 12, 2026 · 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) - National Human Genome Research …

    2 days 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 …

  4. What is DNA?: MedlinePlus Genetics

    Jan 19, 2021 · DNA is the hereditary material in humans and almost all other organisms. Genes are made up of DNA.

  5. The Structure of DNA and RNA – Introductory Biology

    DNA: deoxyribonucleic acid, is the molecule that stores genetic information in living organisms, encoding the instructions needed for growth, development, and reproduction

  6. 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.

  7. Deoxyribonucleic Acid (DNA) Fact Sheet

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

  8. What is DNA? Understanding the Blueprint of Life

    Apr 5, 2025 · DNA is the molecule that carries hereditary information from one generation to the next. This means that offspring inherit a combination of genes from their parents, and this genetic …

  9. Nucleic acid - Wikipedia

    RNA usually forms a chain of single bases, whereas DNA forms a chain of base pairs. The bases found in RNA and DNA are: adenine, cytosine, guanine, thymine, and uracil. Thymine occurs only in DNA …

  10. 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 generation to …