genetic locus

ge·net·ic lo·cus

Each chromosome consists of a short arm and a long arm, which are joined at the centromere. The paired autosomes of the human genome are numbered in the order of decreasing length, 1 being the longest and 22 the shortest. Genes are arrayed in linear sequence along both arms of each chromosome. Differential staining permits their grouping in regions, bands, subbands, and sub-subbands. The standard designation of a gene locus consists of (1) chromosome number; (2) p for short arm, q for long arm; (3) region and band numbers, written together as a 2-digit numeral; (4) a period; (5) subband and sub-subband numbers, written together as a 2-digit numeral.
The set of homologous parts of a pair of chromosomes that may be occupied by allelic genes. The locus thus comprises a pair of locations (except in the X chromosome in males). The concept of a locus is somewhat idealized, not taking into account accidents that may occur in meiosis such as duplication of loci as a result of unequal crossing-over, translocations, and inversions.
References in periodicals archive ?
The genetic locus for X-linked Kallmann syndrome has been assigned to be X p 22.
sup][1] have already discovered that the genetic locus responsible for AI is located at chromosome 1p21.
A report on genomewide linkage analysis of 24 Italian and 06 American families with IgAN identified a genetic locus, on chromosome 6q22 23 designated as IGAN1 (Gharavi, et al, 2000).
Geographic differences in genetic locus linkages for Borrelia burgdorferi.
FSP can also be classified according to the specific genetic locus (SPG) as SPG1" through SPG 48".
These findings are truly exciting as possibly for the first time we have found a genetic locus for depression.
This is truly exciting as we have found a genetic locus for the disease.
What we have found is the first genetic locus for sleepwalking," the Telegraph quoted Gurnett as telling the BBC.
Many previous studies have identified a strong association between a genetic locus on 9p21 with cardiovascular disease outcomes, but the cause for this association was unknown.
Researchers have identified a genetic locus on chromosome 1q31 that is significantly associated with susceptibility to asthma.
This widely cited finding is based on sequences of mitochondrial DNA (mtDNA), which is a single genetic locus, subject to large random variation and to unknown selective forces in the history of both species.
Scientists are struggling to find a genetic locus for such a type of suicide that engulfs not only the self but numerous other individuals.