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  1. Gene - Wikipedia

    We define a gene as a DNA sequence that is transcribed. This definition includes genes that do not encode proteins (not all transcripts are messenger RNA). The definition normally excludes regions of …

  2. What Is a Gene? - Cleveland Clinic

    Jul 9, 2025 · Genes are segments of DNA that give your cells instructions for specific traits or body functions. Different versions of the same gene are called alleles.

  3. Gene | Definition, Structure, Expression, & Facts | Britannica

    Apr 5, 2026 · gene, unit of hereditary information that occupies a fixed position (locus) on a chromosome. Genes achieve their effects by directing the synthesis of proteins. In eukaryotes (such …

  4. Genetics Basics | Genomics and Your Health | CDC

    May 15, 2024 · Genes are specific sections of DNA that have instructions for making proteins. Proteins make up most of the parts of your body and make your body work the right way. You have two …

  5. Genes - MedlinePlus

    Explore the normal functions of human genes and the health implications of genetic changes.

  6. Gene

    2 days ago · The gene is considered the basic unit of inheritance. Genes are passed from parents to offspring and contain the information needed to specify physical and biological traits.

  7. What is Genetics? | AMNH

    Genetics is the science of genes and how traits are passed on from one generation to the next. People who study genes are geneticists (juh-net-i-sists).

  8. What Is a Gene and How Do Genes Work? - Biology Insights

    A gene represents a fundamental unit of heredity, containing the information that guides the development and function of a living organism. Each gene holds the blueprint for a particular task or …

  9. What Is Genetics? - National Institute of General Medical Sciences

    Apr 8, 2024 · A gene is a segment of DNA that contains instructions for building one or more molecules that help the body work. Researchers estimate that humans have about 20,000 genes, which …