position effect
Genetics
noun
An effect on the phenotypic expression of a gene produced by a difference in its chromosomal position with respect to other genes (especially mutant genes), or to non-coding heterochromatin.
Origin
1930s; earliest use found in Journal of Genetics.
- passing place
- passing resemblance
- passing rule
- passing shot
- passing show
- passing stroke
- passing trade
- pass in one's marble
- passion
- passionable
- passional
- passionary
- passionate
- passionately
- passionateness
- Passion cross
- passion day
- passion dock
- passioned
- passion flower
- passion fruit
- passioning
- Passionist
- passion-killer
- passionless