Is the specific location or position of a gene, DNA sequence, on a chromosome, in the field of genetics
Locus. Definition. noun, plural: loci. (general) A place, space or locality, especially a centre of an activity. (mathematics) The set of all points whose coordinates satisfy a given equation or condition. (genetics) The location of a gene (or of a significant sequence) on a chromosome, as in genetic locus. (medicine) The site on the body where a pathogen enters. Supplement Locus. locus. In genetics, the specific site of a gene on a chromosome. All the alleles of a particular gene occupy the same locus. locus. the specific point on a chromosome where the gene is found. Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row .. Loci: See Locus. Locus (pl. loci): The position on a chromosome of a gene or other chromosome marker; also, the DNA at that position. The use of locus is sometimes restricted to mean regions of DNA that are express ed. The specific physical location of a gene on a chromosome. Locus (loci). Related Terms: Locus. The position of a gene on a chromosome or other chromosome marker s; also, the DNA at that position. The use of the term locus is sometimes restricted to main regions of DNA that are express ed. Plural: ~  Example of bands. A locus (plural loci) is the specific location or position of a gene, DNA sequence, on a chromosome, in the field of genetics. Each chromosome carries many genes; humans' estimated ' haploid ' protein coding genes are 20,000-25,000, on the 23 different chromosomes. For example, the locus of gene OCA1 may be written 11q1.4-q2.1, meaning it is on the long arm of chromosome 11, somewhere in the range from sub-band 4 of region 1 to sub-band 1 of region 2. A locus is the specific physical location of a gene or other DNA sequence on a chromosome, like a genetic street address. The plural of locus is  loci . In genetics, the specific site of a gene on a chromosome. All the alleles of a particular gene occupy the same locus. locus. the specific point on a chromosome where the gene is found. Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row .. LociA locus (plural loci) is the position on a chromosome where a gene is found. A useful analogy would be the address - 'Gene for brown eyes' is the name, '23rd gene' is the house number, 'Chromosome 4' is the street. Confidence votes 137. LociA locus (plural loci) is the position on a chromosome where a gene is found. A useful analogy would be the address - 'Gene for brown eyes' is the name, '23rd gene' is the house number, 'Chromosome 4' is the street. (these are not necessarily true for this gene). A link can be found below. A locus is the specific physical location of a gene or other DNA sequence on a chromosome, like a genetic street address. The plural of locus is loci. 
http://www.biology-online.org/dictionary/Locus http://en.mimi.hu/biology/locus.html http://en.mimi.hu/biology/loci.html https://en.wikipedia.org/wiki/Locus_(genetics) http://en.mimi.hu/biology/locus.html http://www.answers.com/Q/What_is_a_locus http://ghr.nlm.nih.gov/glossary%3Dlocus
what is a locus biology