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 the genome that control transcription but are not themselves transcribed.

What Is a Gene? - Cleveland Clinic
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.

Gene | Definition, Structure, Expression, & Facts | Britannica
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 as animals, plants, and fungi), genes are contained within the cell nucleus.

Gene | Journal | ScienceDirect.com by Elsevier
Gene is dedicated to advancing understanding of genes and genomes, including their regulation, expression, function, and evolution, and their roles in biological processes, phenotypes, and diseases across all biological systems, from prokaryotes to eukaryotes and viruses.

Gene
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.

Gene structure - Wikipedia
A gene is transcribed (copied) from DNA into RNA, which can either be non-coding RNA (ncRNA) with a direct function, or an intermediate messenger RNA (mRNA) that is then translated into protein. Each of these steps is controlled by specific sequence elements, or regions, within the gene.

Gene - Structure, Types & Characteristics - GeeksforGeeks
A gene is a basic unit of heredity in biology. It carries instructions encoded in DNA that control the manufacture of particular proteins or useful RNA molecules.