Locus is a Latin word, which literally means "place", "position" or "local".
This term can be used in different senses and for different areas, such as psychology, genetics, mathematics, phonetics and so on.
In mathematics and geometry, locus is a locus that consists of a set of points in space that enjoy a certain mathematical property. They can be geometric loci with curves, surfaces and so on.
In psychology, locus is classified into locus of control, which is the individual's expectation of the extent to which their reinforcements are under internal control (personal effort, competence) or external control (other people, luck, chance, etc.).
A person who has a predominantly internal locus feels more in control of his own life, achieving personal success more easily, in exchange for a much greater demand on himself.
A person with an external locus of control feels that external factors have greater control over their life, demand more from others, and are more emotionally dependent.
gene locus
Locus in genetics is the fixed location on a chromosome where a particular gene is located or genetic marker.
The organized list of known loci for a chromosome is called a genetic map, which is a process of determining the locus for a particular phenotypic character.
Learn more about the meaning of gene.