Inversion

(Redirected from Inversions)

Definition

noun, plural: inversions

(general) The reversal of state, form, position, direction, order, or course, such as turning inward or inside out

(genetics) A defect in the chromosome in which a segment of the chromosome breaks off and reinserted in the same place but in the reverse direction relative to the rest of the chromosome

(anatomy) The movement of sole towards the median plane

(zoology) The switching from one sex to the opposite in certain animal species

(biochemistry) The conversion of sucrose from dextrorotatory to levorotatory or vice versa

(biogeology) The folding back of strata upon themselves resulting in a seemingly order of succession

(ecology) An atmospheric condition in which the air temperature increases with altitude; hence, resulting in the ground being colder than the surrounding air


Supplement

In general, the term inversion refers to the reversal of state, form, position, direction, order, or course. In biology, particularly in anatomy, the term inversion is used to refer to the movement of sole towards the median plane.

In genetics, inversion is a type of large-scale mutation. Mutation is a change in the nucleotide sequence of a gene or a chromosome. Chromosomal inversions are a rearrangement within the chromosome and are of two types: pericentric (i.e. chromosomal inversions including the centromere) and paracentric (i.e. inversions that do not include the centromere).

In zoology, inversion pertains to the switching from one sex to the opposite in certain animal species. Sexual inversion, per se, is an archaic term used to mean taking on the gender role of the opposite sex.

In biochemistry, inversion refers to the conversion of sucrose from dextrorotatory to levorotatory or vice versa.


Word origin: Latin inversiō, inversiōn-, from inversus, past participle of invertere ("to invert")

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