Gene
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- A locus on a chromosome that encodes a specific protein or several related proteins. It is considered the functional unit of heredity. (See Dominant gene, Fusion gene, Gene amplification, Gene expression, Gene flow, Gene pool, Gene splicing, Gene translocation, Recessive gene, Regulatory gene.)
Susan Allender-Hagedorn and Charles Hagedorn - Cite This Source - This Definition - The unit of heredity transmitted from generation to generation during sexual or asexual reproduction. More generally, the term is used in relation to the transmission and inheritance of particular identifiable traits. The simplest gene consists a segment of nucleic acid that encodes an individual protein or RNA.
UN Food and Agriculture Organization - Cite This Source - This Definition - The fundamental physical and functional unit of heredity. A gene is an ordered sequence of nucleotides located in a particular position on a particular chromosome that encodes a specific functional product (such as a protein or RNA molecule).
USDA CSREES - Cite This Source - This Definition - chimeric gene, Fusion gene, fusion protein, major histocompatibility complex, reporter gene, tribrid protein
- The functional and physical unit of heredity passed from parent to offspring. Genes are pieces of DNA, and most genes contain the information for making a specific protein. See also genome, nucleus, protein
National Human Genome Research Institute - Cite This Source - This Definition - The fundamental physical and functional unit of heredity. A gene is an ordered sequence of nucleotides located in a particular position on a particular chromosome that encodes a specific functional product (i.e., a protein or RNA molecule). See also: gene expression
Human Genome Project - Cite This Source - This Definition - candidate gene, contig, Contig map, fluorescence in situ hybridization (FISH), Morbid map, positional cloning, Radiation hybrid
- A functional unit of heredity that is a segment of DNA located in a specific site on a chromosome. A gene directs the formation of an enzyme or other protein.
The President's Council on Bioethics - Cite This Source - This Definition - A functional unit of heredity that is a segment of DNA found on chromosomes in the nucleus of a cell. Genes direct the formation of an enzyme or other protein.
NIH - Cite This Source - This Definition - A functional unit of heredity that is a segment of DNA located in a specific site on a chromosome. A gene Directs the formation of an enzyme of other protein.
DHHS - Cite This Source - This Definition - Genome, Genomic imprinting, Goosecoid, Hox genes, Maternal gene product, Transgene