Translocation

In genetics, translocation refers to a phenomenon in which part of a chromosome breaks off and becomes attached to a different (non-homologous) chromosome. Translocations can be reciprocal, in which two different chromosomes essentially swap parts. An individual with this chromosomal abnormality still has all the right genetic material and will usually have a normal phenotype, but, because the chromosomes have trouble pairing during meiosis, will usually produce some fraction of inviable gametes.

An individual having one or more pairs of homologous chromosomes, one member of which is normal, and the other member of which is the result of a translocation, is called a translocation heterozygote.

(GPS terminology)

A version of relative positioning that makes use of a known position, such as a National survey station, to aid in the accurate positioning of a desired new point. The initial position (coordinates) is used as a starting point, then the three-dimensional differences measured by GPS are used to calculate the position (coordinates) of the second point.

Trans`lo*ca"tion (?), n. [Pref. trans- + location.]

removal of things from one place to another; substitution of one thing for another.

There happened certain translocations at the deluge. Woodward.

 

© Webster 1913.