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.
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Origin of position effect
First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for position effect
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
Medicine definitions for position effect
Variation in the expression of a gene that results from changes in the gene's position along a chromosome.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.