locus

locus /lo·cus/ (lo´kus) pl. lo´ci, lo´ca   [L.]

1. place; site.

2. in genetics, the specific site of a gene on a chromosome.

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locus caeru´leus  a pigmented eminence in the superior angle of the floor of the fourth ventricle of the brain.

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lo·cus (lks)

n. pl. lo·ci (-s, -k, -k)

1. A place; site.

2. The position that a given gene occupies on a chromosome.

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locus

pl. loci [lō′sī, lō′kē]

Etymology: L, place

a specific place or position, such as the locus of a particular gene on a chromosome.

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locus [lo´kus] (L.)

1. a place or site.

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. Individuals with an internal locus of control generally hold themselves responsible for actions and consequences, while those with an external locus of control tend to believe that they are not able to affect a personal outcome and that luck or destiny are responsible for their actions.

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locus

pl. loci [L.] place; site; in genetics, the specific site of a gene on a chromosome.

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locus ceruleus

a pigmented eminence in the superior angle of the floor of the fourth ventricle of the brain.