Gene - Wikipedia
In biology, the word gene has two meanings. The Mendelian gene is a basic unit of heredity. The molecular gene is a sequence of nucleotides in DNA that is transcribed to produce a functional …
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. In eukaryotes …
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.
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 …
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 …
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.
Definition of gene - NCI Dictionary of Genetics Terms - NCI
Genes are made up of sequences of DNA and are arranged, one after another, at specific locations on chromosomes in the nucleus of cells.