A specific location (1) on a chromosome, matched to the corresponding position on the other chromosome of a pair, the site of the maternal and paternal alleles that are often considered together as a gene; (2) defined within a paleontological or archaeological site
Specific place on a chromosome or genetic map where a gene and its alleles are found
The locus of something is the place where it happens or the most important area or point with which it is associated. Barcelona is the locus of Spanish industry. loci the place where something is particularly known to exist, or which is the centre of something locus of
The line traced by a point which varies its position according to some determinate law; the surface described by a point or line that moves according to a given law
the portion of a chromosome responsible for the production of a polypeptide chain (a sequence of amino acids that may act alone (or in combination) as a functional protein)
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 expressed DNA regions See also: gene expression
Latin for "the place " For example, lawyers talk of the "locus delicti" as the pace where a criminal offense was commited or "loco parentis" to refer to a person who stands in the place of a parent such as a step-parent in a common law relationship
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"
A "locus" most often is a gene, characterized by a mutant phenotype or by a DNA sequence, which has been either genetically mapped or otherwise localized (e g by DNA sequence comparison or hybridization) to a particular spot in the yeast genome A locus may also be a DNA sequence feature such as a centromere A very small number of "loci" which are contained in the database have not been genetically mapped or otherwise localized, but instead have only been shown to be a mutant phenotype that segregates as a single gene Therefore these are not "loci" in the strict sense of the word, but they are included in the database because the names and information about these putative "loci" have been published; see the SGD Gene Naming Guidelines and the subsection therein on resolving gene name problems for a description of how we deal with these putative "loci"
Concept identified by Rotter and related to concept of learner autonomy "A locus of control orientation is a belief about whether the outcomes of our actions are contingent on what we do (internal control orientation) or on events outside our personal control (external control orientation) " (Zimbardo (1985) p 275)
The tendency to attribute success and difficulties either to internal factors such as effort or to external factors such as chance Individuals with learning disabilities tend to blame failure on themselves and achievement on luck, leading to frustration and passivity
the extent to which people perceive outcomes as internally controllable by their own efforts and actions or as externally controlled by chance or outside forces
The perception of control over one's fate that is linked to internal control (where one's own actions determine one's fate) or external control (where environmental conditions determine one's fate)