position effect

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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.

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Origin of position effect

First recorded in 1925–30

Words nearby position effect

position, positional notation, positional nystagmus, position angle, position audit, position effect, positioner, positioning, position isomer, position line, position paper

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use position effect in a sentence

In Israel, however, a new law took effect January 1st that banned the use of underweight models.
How Skinny Is Too Skinny? Israel Bans ‘Underweight’ Models|Carrie Arnold|January 8, 2015|DAILY BEAST
Satirists occupy a perilous position—to skewer dogma and cant, and to antagonize the establishment while needing its protection.
Harry Shearer on The Dangerous Business of Satire|Lloyd Grove|January 8, 2015|DAILY BEAST
But they say its effect on the regular daily operation of organized crime has been negligible.
Mexico’s Priests Are Marked for Murder|Jason McGahan|January 7, 2015|DAILY BEAST
You have to acknowledge your age and position in life, for me quite a lot of those emotionally fueled songs were hormone songs.
Belle & Sebastian Aren’t So Shy Anymore|James Joiner|January 7, 2015|DAILY BEAST

If the ball goes off the screen, it teleports back to the starting position.
Lost For Thousands of Strokes: 'Desert Golfing' Is 'Angry Birds' as Modern Art|Alec Kubas-Meyer|January 2, 2015|DAILY BEAST
In this case, I suspect, there was co-operant a strongly marked childish characteristic, the love of producing an effect.
Children's Ways|James Sully
He shrank, as from some one who inflicted pain as a child, unwittingly, to see what the effect would be.
The Wave|Algernon Blackwood
In this position, the line of cavalry formed the chord of the arc described by the river, and occupied by us.
Blackwood's Edinburgh Magazine, No. CCCXXXIX. January, 1844. Vol. LV.|Various
And so this is why the clever performer cannot reproduce the effect of a speech of Demosthenes or Daniel Webster.
Expressive Voice Culture|Jessie Eldridge Southwick
The well-known "cock and bull" stories of small children are inspired by this love of strong effect.
Children's Ways|James Sully

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

Medical definitions for position effect

position effect

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