What does locus mean in a chromosome?
Listen to pronunciation. (LOH-kus) The physical site or location of a specific gene on a chromosome.
Does each gene have a locus?
Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent. Each pair of alleles represents the genotype of a specific gene.
What is an example of a gene locus?
The location of a gene (or of a significant sequence) on a chromosome or on a linkage map. For example, the locus of the gene OCA1 (or Oculocutaneous Albinism Type 1, the gene associated with albinism) is on 11q1. 4-a2.
Where is the locus located on a chromosome?
A locus is a spot or “address” on a chromosome at which a gene for a particular trait is located in all members of a species. It can also refer to the location of a mutation or other genetic marker. A given locus can be found on any pair of homologous chromosomes (Brown, 2009).
What is another word for locus?
In this page you can discover 24 synonyms, antonyms, idiomatic expressions, and related words for locus, like: location, position, site, place, point, venue, placement, emplacement, situation, spot and locale.
What is a locus in geometry?
A locus is the set of all points (usually forming a curve or surface) satisfying some condition. For example, the locus of points in the plane equidistant from a given point is a circle, and the set of points in three-space equidistant from a given point is a sphere.
What is the relationship between a locus and a gene?
A specific position along a chromosome is called a locus. Each gene occupies a specific locus (so the terms locus and gene are often used interchangeably). Each locus will have an allelic form (allele). The complete set of alleles (at all loci of interest) in an individual is its genotype.