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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 macromolecules that are essential …

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

    1 day 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. What is DNA?: MedlinePlus Genetics

    Jan 19, 2021 · DNA is a double helix formed by base pairs attached to a sugar-phosphate backbone. DNA is the hereditary material in humans and almost all other organisms. Genes are made up of DNA.

  4. Deoxyribonucleic Acid (DNA) Fact Sheet

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

  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 staircase.

  6. What is DNA, and why it’s a key to understanding life, health, and ...

    Jul 10, 2025 · DNA, or deoxyribonucleic acid, is the genetic material found in all living organisms. It is made of long chains of chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T).

  7. 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 …

  8. 3.1: DNA, DNA Replication, and Gene Expression - Biology LibreTexts

    DNA is the genetic material passed from parents to offspring, and it determines genetic traits. DNA is a complex molecule that is the nucleus of every cell of an organism. DNA carries the unique code …

  9. DNA Basics: Nucleotides, Genes, and the Genome - Federal Judicial …

    Deoxyribonucleic acid (DNA) is a complex molecule that contains the genetic code of an organism. It acts as an instruction manual for the operation of each individual cell, and it allows the coordinated …

  10. DNA: Function, structure, and impact on health - Medical News Today

    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.