Gene
Definition
A gene is a genomic region contributing to a functional product, such as a protein or RNA, within a biological expression system. Its interpretation depends on sequence, regulation and transcript processing, and it should not be equated with every DNA marker.
Related terms
- Chromosome
- A chromosome is an organised DNA-containing structure that carries genetic information. Human nuclear chromosomes contain DNA packaged with proteins. Most human body...
- Exon
- Sequence retained in a mature transcript, which may be coding or untranslated. A transcript is an RNA product of transcription. Not every...
- Heterozygosity
- Heterozygosity describes genetic variation at a locus. Observed heterozygosity is the proportion of sampled individuals with two different alleles. Expected heterozygosity is...
- Locus
- A locus is a specified position or region within a genome; its plural is loci. The term identifies where a genetic feature...
Explained in
- Chromosomes, Genes and the Human GenomeA genomic region contributing to a functional product, including a protein or RNA.