meaning of locus in biology
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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 ... A locus (plural loci), in genetics, is the specific location or position of a gene, DNA sequence, on a chromosome. Each chromosome carries many genes; humans' estimated 'haploid' protein coding genes are 20,000-25,000, on the 23 different chromosomes. [en.wikipedia.org/wiki/Locus_(genetics)]
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- 1: a place or site of an event, activity, or thing the integrity of the tissues determines the extent and locus of the damage—Sylvia E. Hines. 2: the position in a chromosome of a particular gene or allele.
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locus n, pl loci (ˈləʊsaɪ). 1. (Law) (in many legal phrases) a place or area, esp the place where something occurred. 2. (Mathematics) maths a set of points whose location satisfies or is determined by one or more specified conditions: the locus of points equidistant from a given point is a circle.. (Mathematics) maths a set of points whose location satisfies or is determined by one or more specified conditions: the locus of points equidistant from a given point is a circle.
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- subspecies. n, pl-cies. 1. (Biology) biology a taxonomic group that is a subdivision of a species: usually occurs because of isolation within a species.
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locus 3. locus-the set of all points or lines that satisfy or are determined by specific conditions; the locus of points equidistant from a given point is a circle.set - (mathematics) an abstract collection of numbers or symbols; the set of prime numbers is infinite. noun., pl loci (ˈləʊsaɪ). 1. (Law) (in many legal phrases) a place or area, esp the place where something occurred. 2. (Mathematics) maths a set of points whose location satisfies or is determined by one or more specified conditions: the locus of points equidistant from a given point is a circle.
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Locus (mathematics) In this example, P is 8cm from l. In geometry, a locus (plural: loci) (Latin word for place, location) is a set of points (commonly, a line, a line segment, a curve or a surface), whose location satisfies or is determined by one or more specified conditions. 1 History and philosophy.
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- Allele. Definition. noun, plural: alleles. (genetics). One member of a pair (or any of the series) of genes occupying a specific spot on a chromosome (called locus) that controls the same trait. Supplement.For example, a pair of alleles controlling the same trait, i.e. eye color: one allele codes for blue eyes, another allele for brown eyes.In humans, simple traits such as eye color may be caused by the interaction of only one pair of alleles.or example, a pair of alleles controlling the same trait, i.e. eye color: one allele codes for blue eyes, another allele for brown eyes. In humans, simple traits such as eye color may be caused by the interaction of only one pair of alleles.
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- (genetics) Characteristics or attributes of an organism that are expressed by genes and/or influenced by the environment. Supplement. Traits include physical attributes of an organism such as hair color, leaf shape, size, etc., and behavioral characteristics, such as bird nesting.Word origin: L tractus. See also: phenotype, inheritance, gene. Please contribute to this project, if you have more information about this term feel free to edit this page.raits include physical attributes of an organism such as hair color, leaf shape, size, etc., and behavioral characteristics, such as bird nesting. Word origin: L tractus.
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- Full Definition of LOCUS. 1. 2. : the set of all points whose location is determined by stated conditions. 3. : the position in a chromosome of a particular gene or allele. See locus defined for English-language learners.See locus defined for kids.ull Definition of LOCUS. 1. 2. : the set of all points whose location is determined by stated conditions. 3. : the position in a chromosome of a particular gene or allele. See locus defined for English-language learners. See locus defined for kids.
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- Quantitative trait locus. A quantitative trait locus (QTL) is a section of DNA (the locus) that correlates with variation in a phenotype (the quantitative trait). The QTL typically is linked to, or contains, the genes that control that phenotype.
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- Full Definition of LOCUS. 1. 2. : the set of all points whose location is determined by stated conditions. 3. : the position in a chromosome of a particular gene or allele. See locus defined for English-language learners. See locus defined for kids.
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Quantitative trait locus A quantitative trait locus (QTL) is a section of DNA (the locus) that correlates with variation in a phenotype (the quantitative trait).The QTL typically is linked to, or contains, the genes that control that phenotype.QTLs are mapped by identifying which molecular markers (such as SNPs or AFLPs) correlate with an observed trait. This is often an early step in identifying and sequencing the actual genes that cause the trait variation.he principle for QTL mapping is: 1) The Likelihood can be calculated for a given set of parameters (particularly QTL effect and QTL position) given the observed data on phenotypes and marker genotypes. 2) The estimates for the parameters are those where the likelihood are highest.
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- 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.A variant of the similar DNA sequence located at a given locus is called an allele.ach chromosome carries many genes; humans' estimated ' haploid ' protein coding genes are 20,000-25,000, on the 23 different chromosomes. A variant of the similar DNA sequence located at a given locus is called an allele.
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- Full Definition of LOCUS. 1. 2. : the set of all points whose location is determined by stated conditions. 3. : the position in a chromosome of a particular gene or allele. See locus defined for English-language learners.
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Wht does locus mean in maths? Best Answer: In mathematics, a locus (Latin for place, plural loci) is a collection of points which share a property. The term 'locus' is usually used of a condition which defines a continuous figure or figures, that is, a curve. For example, a line is the locus of points equidistant from two fixed points. An ellipse is the locus of points, the sum of the distances from which to the foci is a given value. * A hyperbola is the locus of points, the difference of the distances from which to the foci is a given value.
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- Locust is a general, colloquial term that usually refers to migratory grasshoppers of the order Orthoptera, but is sometimes applied to other insects of the order, including crickets and katydids. + 128 others found this useful. Char Kloster.
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Locus (mathematics) From Wikipedia, the free encyclopedia. Each curve in this example is a locus defined as the conchoid of the point P and the line l. In this example, P is 7cm from l. In geometry, a locus (plural: loci) is a set of points whose location satisfies or is determined by one or more specified conditions. The set of points equidistant from two lines which cross is the angle bisector. 2  All conic sections are loci: 3  Parabola: the set of points equidistant from a single point (the focus) and a line (the directrix).
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Locus (genetics) 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. range of loci is specified in a similar way. 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.
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- 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. locus (plural loci) is the specific location or position of a gene, DNA sequence, on a chromosome, in the field of genetics.
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Gene A gene is a region of DNA that encodes function. A chromosome consists of a long strand of DNA containing many genes. A human chromosome can have up to 500 million base pairs of DNA with thousands of genes. A gene is a locus (or region) of DNA which is made up of nucleotides and is the molecular unit of heredity. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. These genes make up different DNA sequences called genotypes.
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- Full Definition of LOCUS. 1. 2. : the set of all points whose location is determined by stated conditions. 3. : the position in a chromosome of a particular gene or allele. See locus defined for English-language learners.See locus defined for kids.ull Definition of LOCUS. 1. 2. : the set of all points whose location is determined by stated conditions. 3. : the position in a chromosome of a particular gene or allele. See locus defined for English-language learners.
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Quantitative trait locus A quantitative trait locus (QTL) is a section of DNA (the locus) that correlates with variation in a phenotype (the quantitative trait).The QTL typically is linked to, or contains, the genes that control that phenotype.QTLs are mapped by identifying which molecular markers (such as SNPs or AFLPs) correlate with an observed trait. This is often an early step in identifying and sequencing the actual genes that cause the trait variation.he QTL typically is linked to, or contains, the genes that control that phenotype. QTLs are mapped by identifying which molecular markers (such as SNPs or AFLPs) correlate with an observed trait. This is often an early step in identifying and sequencing the actual genes that cause the trait variation.
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- An allele is a sequence variant of a gene. alleles - a pair of genes controlling the same characters which are located at the same locus in the homologous chromosomes. gene is… a fundamental unit of heredity. also it is a segment of DNA having a particular base pair.
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- 2. in genetics, the specific site of a gene on a chromosome. locus ceru´leus a pigmented eminence in the superior angle of the floor of the fourth ventricle of the brain. locus of control a belief regarding responsibility for actions.
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Loci 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).elated 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.
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What is a gene locus? A range of locations is specified in a similar way. For example, the locus of gene OCA1 may be written 11q14-q21, meaning it is on the long arm of chromosome 11, somewhere in the range of sub-band 4 of band 1, and sub-band 1 of band 2.The ends of a chromosome are labeled ptel and qtel, and so 2qtel refers to the telomere of the long arm of chromosome 2.iploid and polyploid cells whose chromosomes have the same allele at some locus are called homozygous, while those that have different alleles at a locus, heterozygous. Nomenclature The chromosomal locus of a gene might be written 6p21.3.