Locus

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locus

1. (in many legal phrases) a place or area, esp the place where something occurred
2. Maths a set of points whose location satisfies or is determined by one or more specified conditions
3. Genetics the position of a particular gene on a chromosome

Locus

 

a linear section of a chromosome occupied by a gene.

Using genetic and cytological methods, it is possible to determine the location of a gene, that is, to find which chromosome contains the given gene and its locus, or position in relation to other genes on the same chromosome. It has been demonstrated in some microorganisms that genes that control a particular sequence of biochemical reactions are found in neighboring loci, which are arranged in the same order as the order in which the reactions occur. This has not been established for higher organisms. The term “locus” is sometimes used in the literature as a synonym for the terms “gene” and “cistron.”

locus

[′lō·kəs]
(genetics)
The fixed position of a gene in a chromosome, occupied by allele.
(mathematics)
A collection of points in a Euclidean space whose coordinates satisfy one or more algebraic conditions.

Locus

A distributed system project supporting transparent access to data through a network-wide file system.
References in periodicals archive ?
Half of any individual's STR loci repeat numbers should match values from the maternal source, and the other half from the paternal source.
The most commonly used primer set for this locus thus yields a single 106 bp product (two loci copies, same size) for DNA samples from females, and a 106/112 bp doublet product (one from each locus) from males.
A microsatellite-enriched library of Gulf Menhaden genomic DNA was constructed and microsatellite loci were cloned by using the protocol of Glenn and Schable (2005).
From the 91 prospective loci, primers were designed for the loci that had the following characteristics: 1) the repeated motif was 3 bases or more in length, 2) no interruptions occurred within the repeated segment, and 3) at least 20 unambiguously sequenced base pairs were on both sides of the repeated motif, enabling primer design.
The PCR amplification protocol for LOCI endpoint analysis was as follows.
LOCI also estimates other impacts, such as the increase in new employment, income, households, commercial and industrial establishments and retail purchases.
For loci VNTR 424, VNTR 531, VNTR 1955, VNTR 1982, VNTR 2074, VNTR 2163a, VNTR 3232, VNTR 3239, VNTR 3336, and VNTR 3690, the mixture also contained 0.
In addition, LOCI provides an ultrasensitive homogeneous method for direct detection of nucleic acids with a limit of detection of 2 X [10.
Anchored reference loci for comparative genome mapping in mammals.
Consequently, there is a need for more extensive comparative work involving population screening and DNA sequencing of the various AD related loci homologous genes in hominoid apes.
Reach Networks, a leading provider of online services, has assumed controlling interest of LOCI, a groundbreaking college-driven web "network" originally produced by Barnes & Noble Bookstores, Inc.