position effect

noun Genetics.

the alteration in the expression of a gene or genetic region due to its relocation within the genome as a result of inversion or translocation.

Origin of position effect

First recorded in 1925–30

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British Dictionary definitions for position effect

position effect

noun

the effect on the phenotype of interacting genes when their relative positions on the chromosome are altered, as by inversion

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

position effect in Medicine

position effect

n.

Variation in the expression of a gene that results from changes in the gene's position along a chromosome.