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

    Dec 4, 2025 · gene, unit of hereditary information that occupies a fixed position (locus) on a chromosome. Genes achieve their effects by directing the synthesis of proteins.

  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 - 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 …

  4. What Is A Gene And What Does It Do? | Genetic Blueprint Explained

    A gene is a DNA segment that stores instructions to build proteins, guiding an organism’s growth, function, and traits.

  5. What is a gene?: MedlinePlus Genetics

    May 21, 2024 · What is a gene? A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins, which are …

  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 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 …

  8. What Are Genes, DNA, and Chromosomes? Mapping the Human …

    Oct 27, 2025 · Genes are the basic units that determine the traits that we inherit from our parents. 1 They contain coded information found in nearly every cell of the human body. Our genes are made …

  9. What Are Genes and Where Are They Found in the Cell?

    Aug 3, 2025 · Each gene is a specific sequence of DNA bases that tells the cell how to assemble amino acids into a functional protein. Some genes code for enzymes that catalyze chemical reactions, while …

  10. Gene - Definition and Examples | Biology Dictionary

    Oct 27, 2020 · A gene is an extremely specific sequence of nucleotide monomers that has the ability to completely or partially control the expression of one or more traits in every type of living organism.