spreading of inactivation

spreading of inactivation

[¦spred·iŋ əv in‚ak·tə′vā·shən]
(genetics)
A type of position effect, as in the inactivation of nearby autosomal genes in an X-autosome translocation chromosome in mammalian females heterozygous for the translocation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.