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

    2025年12月4日 · 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 …

  2. What Is a Gene? - Cleveland Clinic

    2025年7月9日 · 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?: MedlinePlus Genetics

    2024年5月21日 · 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 …

  5. 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 …

  6. Gene

    2 天之前 · 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? - genesandhealth.org

    Genes control how our bodies look, grow and function. Humans have about 20,000 genes, and we inherit different versions of our genes from our biological parents. Genes also vary according to a …

  8. Definition of gene - NCI Dictionary of Genetics Terms

    Genes are made up of sequences of DNA and are arranged, one after another, at specific locations on chromosomes in the nucleus of cells.

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

    2025年10月27日 · 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 …

  10. What is a gene? | Definition of a gene - YourGenome

    Our DNA is organised into small sections, called genes. Each gene contains the instructions for making a specific product – usually a protein. Our proteins serve many functions to keep our cells …